In the 1905 Kansas Census for Canton, McPherson County, Kansas the family of Frederick M. Barnum was enumerated as follows:
Family #7
Barnum, F. M.; 30; M; b. Kansas; Laborer
Barnum, Edith; 19; F; b. Nebraska; Came to Kansas from Nebraska; Housekeeper
U.S., World War I Draft Registration Cards, 1917-1918. Name: Fredrick Mirton Barnum; County: McPherson; State: Kansas; Birth Date: 5 Jul 1874; Race: White; Age: 44; Occupation: Farming; Nearest Relative: Edith Barnum; Height/Build: Medium/Medium; Color of Eyes/Hair: Black; Gray.