"On October 4, 1876, at the age of 51, Hayden married Arkansas-born schoolteacher Sallie Davis in Nevada City, California. The couple would have four children, Carl Trumball, Sallie Davis, Anna Spenser, and Mary "Mapes" Calvert. Anna died when two-and-a-half years old while the three other children reached maturity." (citing August, Jack L. (1999). Vision in the Desert: Carl Hayden and Hydropolitics in the American Southwest. Fort Worth: Texas Christian University Press.)