Allen married Margaret Jane McFarlane on 13 Feb 1879 in West Union, Fayette, Iowa, USA. Margaret (daughter of Alexander McFarlane and Elizabeth Addie) was born on 6 Dec 1859 in Milton, Rock, Wisconsin, USA; died on 30 Nov 1941 in Putnam, Fayette, Iowa, USA; was buried in Dec 1941 in Garden Prarie Cemetery, Fayette, Iowa, USA. [Group Sheet] [Family Chart]