From 1920 through 1936 Eloise Blaine Cram was a zoologist for the USDA's Bureau of Animal Industry (BAI), where she gained prominence as a world authority on the parasites of poultry. She eventually became the BAI's head scientist for the investigation of parasites in poultry and game birds. In 1936, Cram took a position at the Zoology Lab of the National Institute of Health.[1]