1900 Census, Callahan Township, Siskiyou County, California, Page 59a
Household 21-21
Hayden, Richard M., head, May 1849, 59, m. 24 yrs., Maine, Maine, Massachusetts, farmer
Hayden, Rosa, wife January 1852, 48, m. 24 yrs., 4-4 children, Missouri, New York, New York
Hayden, Hazel A., daughter, May 1879, 21, California, Maine, Missouri, at school
Hayden, Richard N., son, July 1884, 21, California, Maine, Missouri, at school
Hayden, Charles A., son, June 1887, 12, California, Maine, Missouri, at school
Hayden, Nerva (?), son, June 1892, 7, California, Maine, Missouri
Barnum, Cora A., niece, April 1882, 18, California, Missouri, Iowa, servant