In the 1900 U.S. Census for Highland, Palo Alto County, Iowa the family was enumerated as follows:
Barnum, Clara B.; b. June 1859; Canada; widowed
Marion M.; b. Sept 1887; Wisconsin
Harley W.; b. March 1890; Iowa
Eugene S.; b. May 1892; Iowa
Sherwood A.; b. Sept. 1897; Iowa
In 1910, they are all listed in Cedar Falls, Black Hawk County, Iowa. In 1920, only Clara and Sherwood are listed together in Wendell, Gooding County, Idaho.