Henry DeWolf Smyth is perhaps best known for authoring the "Smyth Report," the official government report on the development of the atomic bomb. His diaries offer a glimpse into that report, as well as his career as physicist, diplomat, instructor, policy maker, and administrator. Recorded in 37 notebooks spanning 35 years (1935-1970), the Smyth appointment books reveal his research, extensive professional networks, and wide-ranging travels through the records of meetings, travel arrangements, cocktail parties, and dinners that filled his schedule. While the first couple journals are maintained in small "Lest We Forget" notebooks (1935-1936), the bulk of the collection is available in larger "Frances Juvenile Home Calendar Club" (1936-1958) and "Engagements" books (1959-1970) packed with notes, lists, asides, and occasional newspaper clippings. Notably, he pastes newspaper clippings related to World War II at the front of contemporaneous diaries (1939-1945) and interweaves key news from the war into his own record-keeping, including the attack on Pearl Harbor and U.S. declaration of war (12/7-12/9/1941), the death of President Roosevelt (4/12/1945), and the deployment of both atomic bombs in Hiroshima and Nagasaki (8/6-8/9/1941). Although the notes are spare, nested within them are insinuations of Smyth's ascendant career. For example, one note records his appointment as Commissioner of the U.S. Atomic Energy Commission: "Pres. Truman sees H.— [Henry] offers commission house job. H. home for dinner. We decide yes" (4/18/1949). While it is unclear who authors all of the earlier entries, his wife, Mary C. Smyth, clearly maintains later "Engagements" books (1959-1970). Notably, the "Gray Board" hearings are also detailed in separate page associated with her 1954 diary. Thus, these volumes ought to interest scholars researching Smyth's role in atomic history and international diplomacy as well as those seeking to elevate figures—such as Mary C. Smyth—whose labor might otherwise remain invisible.
 

Albert Dabadie Bache maintained several diaries that ought to interest scholars investigating the Civil War, naval history, and Asia--especially China and Japan--in the nineteenth century. The first volume recount his tenure as captain's clerk aboard the U.S.S. Hartford in 1862 (1/1-11/28). Bache provides an on-the-ground view of the Civil War that traverses the American North and South. The first half of the journal documents his life at camps in the South, including Baton Rouge, Cape Hatteras, New Orleans, and Vicksburg, and, starting in late-September, he returns to the northeast, first to New York and then to Philadelphia. In addition to providing a glimpse at soldier camps—especially in Baton Rouge (8/8)—Bache records at least one instance of Yellow Fever.; The latter two diaries (from 1867 and 1868 respectively), document his service as assistant paymaster on the U.S.S. Iroquois, of the Asiatic Squadron. After leaving from the Brooklyn Navy Yard (2/1/1867), Bache immediately confronts a hurricane (2/11/1867). Bache had an opportunity to take numerous shore leaves across Brazil, South Africa, Madagascar, Oman, Singapore, China, Japan, and the Philippines: he visits Rio de Janeiro during Holy Week (April 1867), offers extended descriptions of Saint Augustin that spills across multiple entries (7/9-7/22/1867), and attends a Chinese opera in Singapore (10/10/1763). His 1868 journal continues to narrate his travels in Asia, most especially Japan. Bache makes good use of this volume's larger pages, recording extended accounts of the cities Hakodate, Hyogo, Nagasaki, Niigata, Osaka, and Yokohama. After spending most of the year traveling Japan's coast--he doesn't leave for China until 11/16/1868--he closes his volume with a brief visit to the Philippines.
 

The Cassin diaries are contained in six volumes. The first, spanning 1865-66, documents his travel by steamer. Cassin records crossing the equator (7/30/1865), visiting a volcano at Cape Verde (7/25/1865), and arriving in Brazil. Enterprising researchers might research his course using the longitudes and latitudes he records throughout this volume.
 
The second volume picks up more than a year later and commits significant attention to the medical profession. The first entry voices concern about the medical department at the University of Pennsylvania (12/10/1868), and subsequent pages enclose copies of letters from 1869, including his committee appointments, especially Assistant Surgeon in the Navy (4/2/1869). Sequential entries begin in earnest on 5/6/1869, when Cassin recounts his travels aboard the brig Ohieflaua from the Chicago Harbor to Lake St. Clair.
 
Cassin's third and fourth volumes are less descriptive but remarkable for the extent of his travels. In his 1870 "New York" diary, Cassin notes another journey to Brazil in June, South China Sea in August, and Hong Kong and Shanghai in September. His 1870-71 diary dovetails with the latter, recording a trip to Rio de Janeiro (6/6/1870) and undated notes pertaining to a voyage to South Africa. Once again, Cassin captures many longitudes and latitudes.
 
The "Clayton's Octovo Diary 1872" is perhaps the richest from an ethnographic perspective. Cassin provides detailed accounts of visits to Key West (2/10/1872), Havana and Matanzas (between February and April 1872), and even a brief reflection on the act of journaling. "A diary is something like a resolve to call professionally on a dentist
 
you may keep it, but the chances are much in the favor of your putting it off," Cassin observes on 4/26/7182. "Diary writing is almost the stupidest thing that I know of, unless one can make a writing task in no other way." Between May and June 1872, he travels throughout the Caribbean, furnishing descriptions of the peoples and villages he encounters. Interested researchers will find a particularly evocative entry of Key West society women in a 6/21/1872 quotation below.
 
A Pocket Diary dated 1875, finds Cassin landlocked, maintaining a more traditional journal of meetings, calls, letters, and weather conditions. The volume opens in St. Louis where he has apparently purchased a home, and it is not until September that he begins to travel again. That fall he returns to Brazil (11/6) and visits Uruguay (12/1).

Serving as a U.S. Navy physician, Charles Luke Cassin traveled extensively, recording firsthand accounts of Brazil, Canada, South Africa, the South China Sea, and the Caribbean during the postbellum period. His six-volume journal, which spans 1865-1875, offers glimpses at those far flung locations and the various peoples who inhabited them. Cassin's journals ought to appeal to a wide range of researchers, including those interested in the history of seafaring, the West Indies, ethnography, and late-eighteenth-century medical practices.
 
The Cassin diaries are contained in six volumes. The first, spanning 1865-66, documents his travel by steamer. Cassin records crossing the equator (7/30/1865), visiting a volcano at Cape Verde (7/25/1865), and arriving in Brazil. Enterprising researchers might research his course using the longitudes and latitudes he records throughout this volume.
 
The second volume picks up more than a year later and commits significant attention to the medical profession. The first entry voices concern about the medical department at the University of Pennsylvania (12/10/1868), and subsequent pages enclose copies of letters from 1869, including his committee appointments, especially Assistant Surgeon in the Navy (4/2/1869). Sequential entries begin in earnest on 5/6/1869, when Cassin recounts his travels aboard the brig Ohieflaua from the Chicago Harbor to Lake St. Clair.
 
Cassin's third and fourth volumes are less descriptive but remarkable for the extent of his travels. In his 1870 "New York" diary, Cassin notes another journey to Brazil in June, South China Sea in August, and Hong Kong and Shanghai in September. His 1870-71 diary dovetails with the latter, recording a trip to Rio de Janeiro (6/6/1870) and undated notes pertaining to a voyage to South Africa. Once again, Cassin captures many longitudes and latitudes.
 
The "Clayton's Octovo Diary 1872" is perhaps the richest from an ethnographic perspective. Cassin provides detailed accounts of visits to Key West (2/10/1872), Havana and Matanzas (between February and April 1872), and even a brief reflection on the act of journaling. "A diary is something like a resolve to call professionally on a dentist
 
you may keep it, but the chances are much in the favor of your putting it off," Cassin observes on 4/26/7182. "Diary writing is almost the stupidest thing that I know of, unless one can make a writing task in no other way." Between May and June 1872, he travels throughout the Caribbean, furnishing descriptions of the peoples and villages he encounters. Interested researchers will find a particularly evocative entry of Key West society women in a 6/21/1872 quotation below.
 
A Pocket Diary dated 1875, finds Cassin landlocked, maintaining a more traditional journal of meetings, calls, letters, and weather conditions. The volume opens in St. Louis where he has apparently purchased a home, and it is not until September that he begins to travel again. That fall he returns to Brazil (11/6) and visits Uruguay (12/1).

The Elisha Kent Kane Papers and Logbooks include at least 50 heterogeneous notebooks, journals, and logs that may be loosely termed diaries and clustered into four main categories: Kane's arctic expeditions (containing six notebooks); his world travel (eight notebooks); his education, training, and medical practice (24 notebooks); and the various ship logs contained in the Kane Ship Log collection (12 notebooks). Although some of these records are difficult to interpret in isolation, when read together in these suggestive clusters, they will richly reward scholars interested in trans-Atlantic and trans-Pacific travel, antebellum medicine, colonialism, and ethnography. Reference F. A. Parker's "Log of the U.S. Frigate Brandywine" (Kane Logbooks, No.7) and Samuel L. Breeze's "Journal of the U.S. Sloop of War Albany" (Kane Logbooks, No.8) for detailed illustrations of antebellum Rio de Janeiro, Macao, Hong Kong, Honolulu, Valparaiso, Veracruz, and the Yucatan.
 

The travel journals of Harvard professor, curator, and evolutionary biologist George Gaylord Simpson ought to be near the top research lists of scholars investigating twentieth-century history, travel, conservation, anthropology, and paleontology. Available in seven boxes of handwritten journals, typed pages, carbon copies, and countless ephemera, Simpson's travel writings provide textured insights into his life, research, intellectual, philosophical, and political positions. Over the course of six decades of journaling (1924-1984), Simpson records at least 36 distinct expeditions, traveling to every continent and documenting discoveries in extraordinary detail and literary style. (Consider the locations identified with this note representative rather than comprehensive of his diverse travels.) Noteworthy journals include: Depression-era trips to Patagonia (1931, 1934), an extended tour of Venezuela in the late-1930s (1938-39), trips to Brazil and the Amazon basin (1954-56, 1983-84), a tour to Spain under Franco (1960), expeditions in North Africa and the Middle East just before the Six Day War (1967), visits to Australia (1951, 1968), Fiji (1968), Indonesia (1975), Papua New Guinea (1976), trips to the Galapagos (1970, 1974), expeditions to the Arctic (1974) and Antarctica (1971-73), a trip to Soviet Union during the Cold War (1977), and a tour of China after its economic reforms (1980).; In his travels, Simpson's mastery of detail is matched only by his curiosity and literary flourish. For example, during his 1938-39 Venezuela tour, he discusses everything from population density (4/25/1939) and the work of Catholic missionaries with indigenous populations (1/15/1939) to the sweet coffee in Barquisimeto (9/21/1938) and his method for killing an opossum without damaging its skin (10/6/1938). At times, his reflections blur the boundaries of prose and poetry. In a collection of reminders from his time in Los Robles, he lists: "The noise they make to shoo animals--This can't be written even approximately, something like the clearing of a throat long and viciously. The sound of rain falling on canvas, on bushes, everywhere, the roar of flooding gullies, and slip and thud of landslides. The sound of pigs slashing and shearing by night outside the kitchen. The smell of fresh, heavily roasted coffee being ground…Hillsides brilliant yellow and pale green with mecutera" (12/19/1938). Researchers may anticipate discovering such redolent entries scattered throughout Simpson's journals, as suggested by Selected Quotations. Although items are not individually cataloged, scholars may choose to begin to mine this rich collection using Anne Roe Simpson's "Note on travel diaries."
 

The Heiser diaries are without peer when it comes to their scope--spanning the first seven decades of the twentieth-century--global reach, and detail. Scholars exploring the history of medicine might gravitate towards entries related to his public health work in the Philippines (1908-1916). Researchers interested in the history of zionism will be richly rewarded by volumes from 1922 and 1926--an excerpt from Heiser's July 1922 journey to Palestine is excerpted in Selected Quotations. And those interested in colonial India will discover a numerous reflections on Gandhi and 1920s non-violent resistance movements (also excerpted in Selected Quotations).
 
Perhaps most surprising are Heiser's detailed accounts of European travel between the 1920s and 1930s, during which he expresses some sympathy for nationalist movements. Traveling war-torn Italy, he remarked on there "appears to be unanimous agreement among natives and foreigners" that the new prime minister, Benito Mussolini, "has accomplished extraordinary results and that he is honest and genuinely patriotic" (11/19/1923). Several years later, he documents the nation's progress in developing infrastructure and improving services. He concludes his 4/29/1926 entry with an ominous justification for fascism: "Democracy gradually became so inefficient that all came to a standstill and a dictator was able to start the machinery on an effective basis."
 
Heiser traveled widely during the decade preceding World War II. In the late-1930s, he returned to Italy and decries the ubiquitous military presence, government propaganda, and oppressive taxation. And yet, he ends his entry with a section entitled "The Other Side." Heiser writes: "A whole new social order has been created. Instead of people finding fault with what government fails in, the press and government propaganda constantly drive into their ears what government is doing for the people. (In the end will this not produce more peace of mind and happiness than our democratic way of emphasizing fault-finding)" (4/25/1937).
 
On the topic of promoting public happiness, Heiser draws a similar conclusion during a contemporaneous visit to Germany. While he decries the Nazi government's "censorship, prohibitions and [intrusion into] one's private affairs," he adds: "And yet one begins to wonder whether there is not much to be said in favor of the good type of dictatorships, in promoting human happiness. In democracies people are [annoyed] to say or think little of the good things government does for them and to place main emphasis upon petty fault finding" (6/3/1937). Finally, just one year prior to the outbreak of World War II, Heiser pens perhaps his most generous account of dictatorships. That account, "Further Impressions Dictatorships," is excerpted in Selected Quotations.

By any measure, public health leader Victor George Heiser lived a long, productive, and vigorous life. His 86 diaries (1890-1972) predate the Spanish-American War and post-date U.S. escalation in Vietnam, while his career in public health put him in contact with politicians, diplomats, ambassadors, and government officials across the globe. An astute political observer, Heiser offers rich, on-the-ground insights into twentieth-century history as it unfolded, from the rise of Gandhi to the fall of Hitler. His 1920s and 1930s entries also offer candid explanations of and justifications for dictatorship. The Heiser diaries may interest a wide range of scholars, including those researching the history of science, American public health policy in the Philippines, the history of Zionism and Israeli statehood, colonialism in Asia (most especially India), and Europe between World War I and World War II.
 
The Heiser diaries are without peer when it comes to their scope--spanning the first seven decades of the twentieth-century--global reach, and detail. Scholars exploring the history of medicine might gravitate towards entries related to his public health work in the Philippines (1908-1916). Researchers interested in the history of zionism will be richly rewarded by volumes from 1922 and 1926--an excerpt from Heiser's July 1922 journey to Palestine is excerpted in Selected Quotations. And those interested in colonial India will discover a numerous reflections on Gandhi and 1920s non-violent resistance movements (also excerpted in Selected Quotations).
 
Perhaps most surprising are Heiser's detailed accounts of European travel between the 1920s and 1930s, during which he expresses some sympathy for nationalist movements. Traveling war-torn Italy, he remarked on there "appears to be unanimous agreement among natives and foreigners" that the new prime minister, Benito Mussolini, "has accomplished extraordinary results and that he is honest and genuinely patriotic" (11/19/1923). Several years later, he documents the nation's progress in developing infrastructure and improving services. He concludes his 4/29/1926 entry with an ominous justification for fascism: "Democracy gradually became so inefficient that all came to a standstill and a dictator was able to start the machinery on an effective basis."
 
Heiser traveled widely during the decade preceding World War II. In the late-1930s, he returned to Italy and decries the ubiquitous military presence, government propaganda, and oppressive taxation. And yet, he ends his entry with a section entitled "The Other Side." Heiser writes: "A whole new social order has been created. Instead of people finding fault with what government fails in, the press and government propaganda constantly drive into their ears what government is doing for the people. (In the end will this not produce more peace of mind and happiness than our democratic way of emphasizing fault-finding)" (4/25/1937).
 
On the topic of promoting public happiness, Heiser draws a similar conclusion during a contemporaneous visit to Germany. While he decries the Nazi government's "censorship, prohibitions and [intrusion into] one's private affairs," he adds: "And yet one begins to wonder whether there is not much to be said in favor of the good type of dictatorships, in promoting human happiness. In democracies people are [annoyed] to say or think little of the good things government does for them and to place main emphasis upon petty fault finding" (6/3/1937). Finally, just one year prior to the outbreak of World War II, Heiser pens perhaps his most generous account of dictatorships. That account, "Further Impressions Dictatorships," is excerpted in Selected Quotations.

Early lab notes provide insights into Flexner's research in Asia. For example, an 1899-1900 diary offers a window into Manilla hospitals, travel by rickshaw in Tokyo, and observations on geisha, saki, kimonos, and Emperor in Japan. A later notebook, which purports to document a "Trip to China" in August 1915, actually features observations on the population of Honolulu, female education in Korea, and treatment of tuberculosis in Japan.
 
Later notebooks record Flexner's travels in Europe and final years as director of the Rockefeller Institute. A book misdated "January 3, 1931" provides an account of his journey to England and France to attend the Inter-Allied Scientific Conference (9/15-12/28/1918). Notably, on that trip, Flexner learns of the armistice from his waiter and wonders what the future will hold for Germany after the dissolution of Austria-Hungary (11/11/1918). Interspersed in later journals, researchers will discover Flexner's reflections on "Hitler & Jewish intellectuals" (4/12/1933) and the musings on the "German University Situation" (4/15/1933). In a notebook dated December 1934, Flexner documents a trip to Cairo (12/21/1934) and an encounter with FDR, Jr. (1/18/1935). Several notebooks document his directorship at the Rockefeller Institute between 1930-35, including the effects of the Great Depression on the Institute's budget (6/5/1932), encounters with Rockefeller family in (1931 and 1935), and his personal ambitions (1931).
 
Perhaps most surprising are a series of loosely-bound notes from 1938-1944. Those notes include a trip to England on the eve of World War II (1/1/1938-2/7/1939) as well as reflections on the outbreak and progress of the war. "England & France having exhausted every effort to influence Hitler declared war on Poland," he writes two days after Germany invades Poland, adding, "No enthusiasm on the part of any population—German, English, French—on [going late] this war as happened in 1914!" (9/3/1939). A year later, he records the German invasion of Paris, writing, "poor French, poor world civilization" (6/15/1940). Researchers interested in the history of World War II will discover that Flexner studiously records and comments upon key events, including Italy's entrance into the war (6/10/1940), FDR's declaration of a state of emergency (5/27-5/28/1941), the Japanese bombing of Pearl Harbor (12/7/1941), the U.S. declaration of war on Japan (12/8/1941), the surrender of Italy (9/4/1943), D-Day (6/6/1944), the liberation of Paris (8/23/1944), and FDR's landslide reelection to a fourth term (11/7/1944).

With 38 volumes spanning 1899-1944, the Simon Flexner Diaries (1899-1944) provide rich insights into Flexner's laboratory work, leadership at the Rockefeller Institute, study of pathology and bacteriology in the Philippines, and observations on Europe at the outbreak of World War II. Alongside his laboratory notes from Manila (1899-1900), early notebooks record medical and ethnographic observations from Japan (1900, 1915), Korea (1915), and Hawaii (1915), whereas later journals document his late-tenure as director of the Rockefeller Institute (1930-35), travels in colonial Egypt (1934), and visit to France (1918, 1931) and England (1918, 1931, 1938-39) in the years between World War I and World War II. The diaries contained in the Simon Flexner Papers ought to interest scholars researching twentieth-century medicine, philanthropy, colonialism, and war, as well as Flexner's leadership of the Rockefeller Institute and contributions to the fields of pathology and bacteriology.
 
Early lab notes provide insights into Flexner's research in Asia. For example, an 1899-1900 diary offers a window into Manilla hospitals, travel by rickshaw in Tokyo, and observations on geisha, saki, kimonos, and Emperor in Japan. A later notebook, which purports to document a "Trip to China" in August 1915, actually features observations on the population of Honolulu, female education in Korea, and treatment of tuberculosis in Japan.
 
Later notebooks record Flexner's travels in Europe and final years as director of the Rockefeller Institute. A book misdated "January 3, 1931" provides an account of his journey to England and France to attend the Inter-Allied Scientific Conference (9/15-12/28/1918). Notably, on that trip, Flexner learns of the armistice from his waiter and wonders what the future will hold for Germany after the dissolution of Austria-Hungary (11/11/1918). Interspersed in later journals, researchers will discover Flexner's reflections on "Hitler & Jewish intellectuals" (4/12/1933) and the musings on the "German University Situation" (4/15/1933). In a notebook dated December 1934, Flexner documents a trip to Cairo (12/21/1934) and an encounter with FDR, Jr. (1/18/1935). Several notebooks document his directorship at the Rockefeller Institute between 1930-35, including the effects of the Great Depression on the Institute's budget (6/5/1932), encounters with Rockefeller family in (1931 and 1935), and his personal ambitions (1931).
 
Perhaps most surprising are a series of loosely-bound notes from 1938-1944. Those notes include a trip to England on the eve of World War II (1/1/1938-2/7/1939) as well as reflections on the outbreak and progress of the war. "England & France having exhausted every effort to influence Hitler declared war on Poland," he writes two days after Germany invades Poland, adding, "No enthusiasm on the part of any population—German, English, French—on [going late] this war as happened in 1914!" (9/3/1939). A year later, he records the German invasion of Paris, writing, "poor French, poor world civilization" (6/15/1940). Researchers interested in the history of World War II will discover that Flexner studiously records and comments upon key events, including Italy's entrance into the war (6/10/1940), FDR's declaration of a state of emergency (5/27-5/28/1941), the Japanese bombing of Pearl Harbor (12/7/1941), the U.S. declaration of war on Japan (12/8/1941), the surrender of Italy (9/4/1943), D-Day (6/6/1944), the liberation of Paris (8/23/1944), and FDR's landslide reelection to a fourth term (11/7/1944).