Robert married Emily A. Whitney on 23 Feb 1839 in Danville,Knox,Ohio, USA. Emily (daughter of Thomas Whitney and Tamazene Jennings) was born on 5 Feb 1810 in Tunbridge,,Vermont, USA; died in Feb 1890 in Ohio, USA; was buried in Sargent Cemetery,Rudolph,Wood,Ohio, USA. [Group Sheet] [Family Chart]

1. Mary E. McMahan was born about 1840 in Ohio, USA .
2. Robert Whitney McMahan was born on 9 Oct 1842 in Jeromesville,Ashland,Ohio, USA ; died on 4 May 1911 in Bowling Green,Wood,Ohio, USA; was buried in Sargent Cemetery,Rudolph,Wood,Ohio, USA.