Description: [edan-image:id=siris_arc_392292,size=800,center]Dr. John Thomas, Jr., M.D. was a renowned clinician, epidemiologist, and research scholar who taught at Meharry Medical College for more than half century. When this photograph was made, he had just been appointed Research Collaborator at Brookhaven National Laboratory, where he was engaged in a study of the precursors of
Description: In the U.S. Department of Agriculture (USDA) Office of Exhibits, Margaret Jane Russell Roller (1888-1973) had begun to specialize in fabricating lifelike wax models of food and animals.