The Herbert Spencer Jennings Papers contain at least 17 volumes of diaries and various other workbooks, notebooks, and commonplace books with which researchers may supplement those volumes. Although the volumes span 1903-1945, Jennings maintains them most regularly between 1924-1945, providing detailed insights into his research, teaching, professional networks, writing and publications in the fields of microbiology, genetics, and, to a lesser degree, eugenics. For a short period (1924-27) he maintains some entries in shorthand, but returns to a long form thereafter. Integrated throughout his entries are occasional pieces of ephemera, including notes from students (e.g. 4/8/1929), business cards (11/4/1931), newspaper clippings (7/31/1933), and even the passport photos for he and his wife, Mary Louise Spencer (6/27/1935). Researchers interested in his biography, may choose to begin their research using the volume dated 3/11/1938, which contains entries as late as 1/1/1945. That volume encompasses his retirement from Johns Hopkins University (1938), the death of his first wife, Mary (also in 1938), and his remarriage to Lulu Plant Jennings (1939). Jennings' extended trips abroad, including Italy (1903-4), Japan (1931-33), and England (1933-36), may interest scholars researching twentieth-century Europe. Notably, he maintained separate notebooks with further records and ephemera related to both of the latter trips, including two notebooks related to Japanese language and two large scrapbooks related to his time at Oxford. Finally, scholars specifically interested in his career may take an interest in his sporadic notes concerning eugenics (e.g. 1/27/1933) and Charles Davenport, who also maintained an extensive set of diaries available at the APS (Mss.B.D27). For example, nested inside the diary dated 10/12/1928-7/10/1929, Jennings encloses a note addressed to a Mrs. Lutz (5/31/1929), in which he congratulates her on the twenty-fifth anniversary of an institute, which is almost certainly Davenport's Carnegie Institute (opened 6/11/1904).
 

Morley's early diaries provide intimate accounts of personal affairs, including his romantic relationships and education at Harvard University. In addition to documenting his budding relationship with Alice Williams, whom he would marry in 1908 and divorce in 1914, Morley writes at length about the planning of his first field trip to the Yucatan (1906-07). During that trip, he provides rich accounts of Havana (2/4/1907), Uxmal (2/15/1907), and his first excavation (8/19/1907).
 
Starting in 1912, his diary takes on a closer resemblance to a field notebook, with detailed accounts of his excavations in Belize, Guatemala, Honduras, El Salvador, and Mexico. Interspersed in those records are fascinating accounts of the World War I and World War II, including oblique references to Morley's espionage work. For example, on January 9, 1914 he writes of a "curious telegram warning" from Washington: "'Make no affiliations in the C.matter. This is a danger signal. Await further advices.' I cannot imagine what this can mean. Is it a warning against H.? I sent the following reply: 'Have made no affiliations whatever. Will make none. Will preserve absolute secrecy and keep free from all entanglements. My case is in your hands. Am awaiting further instructions.' Think I will hear by Monday."
 
As the war unfolded, Morley recorded its effects in both Central and South America, including President Woodrow Wilson's "destructive" policy in Mexico (2/13/1914), the geopolitical scramble for Guatemala, and the "key-stone of the arch between the Rio Grande and the canal" (12/8/1917). Later, at the outset of World War II, Morley notes Japanese encroachment on the Dutch East Indies (2/19/1941), and even the attack on Pearl Harbor, "a series of shots that literally were heard around the world" (12/29/1941).
 
In fact, war proves disruptive for Morley's work. A colleague, Dr. Moise La Fleur, is killed during a Mexican chicleros attack (5/17-19/1916), an incident from which Morley does not soon recover. Moreover his excavation of Chichen Itza is badly delayed until 4/28/1924.
 
Nevertheless, researchers interested in both the history of South America and the field of archaeology will be rewarded with meticulous descriptions of excavations conducted between the 1920s-1940s.

The 39 volumes of Sylvanus ("Vay") Griswold Morley diaries span 42 years of the first-half of the twentieth century, and provide textured accounts of Morley's personal affairs, archaeological expeditions in Central and South America, and developments of World War I and II in South America. Morley began keeping a journal while he was in school (1905) and continued maintaining it until 1946, a year before his death the year before his death (1947). Notably, all entries are typed, enabling researchers to quickly scan volumes for specific interests.
 
Morley's early diaries provide intimate accounts of personal affairs, including his romantic relationships and education at Harvard University. In addition to documenting his budding relationship with Alice Williams, whom he would marry in 1908 and divorce in 1914, Morley writes at length about the planning of his first field trip to the Yucatan (1906-07). During that trip, he provides rich accounts of Havana (2/4/1907), Uxmal (2/15/1907), and his first excavation (8/19/1907).
 
Starting in 1912, his diary takes on a closer resemblance to a field notebook, with detailed accounts of his excavations in Belize, Guatemala, Honduras, El Salvador, and Mexico. Interspersed in those records are fascinating accounts of the World War I and World War II, including oblique references to Morley's espionage work. For example, on January 9, 1914 he writes of a "curious telegram warning" from Washington: "'Make no affiliations in the C.matter. This is a danger signal. Await further advices.' I cannot imagine what this can mean. Is it a warning against H.? I sent the following reply: 'Have made no affiliations whatever. Will make none. Will preserve absolute secrecy and keep free from all entanglements. My case is in your hands. Am awaiting further instructions.' Think I will hear by Monday."
 
As the war unfolded, Morley recorded its effects in both Central and South America, including President Woodrow Wilson's "destructive" policy in Mexico (2/13/1914), the geopolitical scramble for Guatemala, and the "key-stone of the arch between the Rio Grande and the canal" (12/8/1917). Later, at the outset of World War II, Morley notes Japanese encroachment on the Dutch East Indies (2/19/1941), and even the attack on Pearl Harbor, "a series of shots that literally were heard around the world" (12/29/1941).
 
In fact, war proves disruptive for Morley's work. A colleague, Dr. Moise La Fleur, is killed during a Mexican chicleros attack (5/17-19/1916), an incident from which Morley does not soon recover. Moreover his excavation of Chichen Itza is badly delayed until 4/28/1924.
 
Nevertheless, researchers interested in both the history of South America and the field of archaeology will be rewarded with meticulous descriptions of excavations conducted between the 1920s-1940s.