William Davidson married Lucinda M. Miner in Fulton County, Illinois on January 24, 1860. The couple had seven children: Harold L., Bertha B., Frances M., Lulu M., Maude G., Mabel, and Nellie (the latter two died in infancy). Lucinda Davidson died of a heart condition on December 25, 1893. On April 3, 1895, William married his second wife, poet Margaret Gilman George (who was 32 years younger than her husband), in Dallas, Texas. The couple had one son, William Gilman Davidson, who later became publisher and editor of the Fulton Democrat. Margaret Davidson died suddenly on November 27, 1897, due to a heart condition stemming from a childhood illness.
