Ashley Montagu (1905-1999), physical anthropologist, was a prominent figure in American intellectual life. British by birth, educated at University College London and the London School of Economics, then Columbia University in New York City, Montagu was a persistent advocate for gender and racial equality. He was a tireless activist for human understanding and child welfare in particular. Departing from academe in 1955, a victim of McCarthyite hysteria, he was a remarkably prolific writer and speaker, eventually publishing more than 50 books, over 40 of them after he left the academy. Montagu continued to lobby passionately against the primacy of race in discussions of intellect and skill, and undertook works in a wide variety of fields, from evolution to parenting. Some of his most significant works include Man's Most Dangerous Myth: The Fallacy of Race (1942), the UNESCO Statement on Race (1951), Man and Aggression (1968) and his novel The Elephant Man (1971), which became the basis for an award winning play and movie. Ashley Montagu's contributions to the spread of scientific knowledge and human understanding make him one of the most important intellectuals of the 20th century.

Raymond Pearl spent the majority of his academic career (1918-1940) at Johns Hopkins University, where he was Professor of Biometry and Vital Statistics and Director of the Institute of Biological Research. Founder of the Quarterly Review of Biology and Human Biology, he made significant contributions in the areas of biology, genetics, eugenics, and statistics. The Pearl Papers includes correspondence as well as notebooks, scrapbooks, diplomas, photographs, and 33 volumes of diaries. There is significant correspondence with his wife, Maud (ca. 500 letters), and mother, Ida May (ca. 300 letters), particularly for the years 1895-1934. Of special note is Pearl's correspondence with his friend, colleague, and fellow Baltimoreian, H. L. Mencken (ca. 500 letters). The collection contains important information on the American Association of Physical Anthropologists, The Baltimore Sun, the Birth Control Federation of America, Dartmouth College, the International Institute of Statistics, Johns Hopkins University, and the National Academy of Sciences. This note is currently under review for revision.