Francis married Mary CARROLL in 1890. Mary (daughter of Daniel CARROLL and Elizabeth LARKIN) was born on 17 Sep 1866 in Fond Du Lac, Wisconsin, USA; died on 21 Dec 1926 in Chicago, Cook, Illinois, USA; was buried on 24 Dec 1926 in Chicago, Illinois. [Group Sheet] [Family Chart]

1. Carroll Francis MCMAHON was born on 27 Jan 1891 in Chicago, Cook, Illinois, USA; died on 7 Feb 1957 in Santa Clara.
2. Dorothy Ellen MCMAHON was born about 1897 in Illinois, USA.