This collection was created by combining two separate accessions of biographical information on and photographs of entomologists.
Series 1 consists mostly of biographical materials on dipterists (entomologists who specialize in the study of flies) but also includes information about other entomologists and scientists in general. The material, which dates between 1797 and 1988, includes obituaries, magazine and newspaper articles, correspondence, bibliographies, photographs, handwriting samples, book reviews, and biographical sketches. Especially rich are the files on William H. Ashmead, Walther Horn, S. Dillon Ripley, and Alan Stone. Information on a number of entomological societies such as the Cambridge Entomological Club, the Entomological Society of America, and the Royal Entomological Society of London is also included. The series also includes a small number of group photographs and one folder of handwriting samples. The handwriting samples and other correspondence were assembled by Curtis W. Sabrosky and later culled from his papers as well as the papers of John M. Aldrich, Axel L. Melander, and Alan Stone.
Series 2 consists primarily of photographs of entomologists taken between 1873 and 1950. The photographs were for the most part collected by Eugene Amandus Schwarz and Herbert Spencer Barber, United States Department of Agriculture entomologists associated with the United States National Museum. Included are formal portraits, casual shots, photographs taken during field work, and group photographs. The series also contains photographs of field work sites from around the world, and a few postcards.