In the 1915 Kansas State Census for Empire, McPherson County the family of W. C. Barnum, Jr. was enumerated as follows:
Dwelling #123; Family #124
Barnum, W. C. Jr.; 44; M; W; b. Illinois; Came to Kansas from Illinois; Farmer
Barnum, Mary C.; 39; F; W; b. Illinois; Came to Kansas from Nebraska; Housewife
Barnum, Leroy; 16; M; W; b. Nebraska; Came to Kansas from Nebraska; School boy
Barnum, George; 10; M; W; b. Kansas; School boy
Barnum, Myron; 7; M; W; b. Kansas; School boy