Bureau of Plant Industry does not have information on the number of African-American employees.
US National Archives and Records Administration 130/68/3/00 box #3 entry #5 "Negroes" folder
Woodrow Wilson Presidential Library & Museum
Digital copy acquired from federal archives by previous WWPL Archivist, Heidi Hackford.
Jones, James E., “James E. Jones to RM Reese,” 1914 July 15, A071514e, Race and Segregation Collection, Woodrow Wilson Presidential Library & Museum, Staunton, Virginia.