A biography of Colonel Peter R. Dolman is included in "Progressive Men of the State of Montana". In 1873, Pike County, MO, Peter married Miss Helen Carroll, born 1861 in Louisiana, MO, daughter of Thomas M. Carroll. Three children: Carroll, b. 1875, Martha, Thomas Bryson.Helen died in Butte, MT, in 1895. Peter married her cousin, Miss Effie Carroll, in 1901.