The 1880 US Census for Collin County, Texas enumerates Howard Barnum, aged 20 years. The 1900 Census for Pilot Point, Denton County, Texas lists Howard, aged 39; Katie S., 36 and Mattie, 9. The 1910 Census for Pilot Point, Denton County, Texas lists Howard H. Barnum, aged 47; Katie S., 46 and Mattie W., 18. The 1920 Census for the same location shows Howard H. Barnum, 58 and Katherine 55, while a separate listing appears for Martin L. Leonhard, 40; Mattie W., 27 and Hoyt V., 2.