John married Marguerite Kiefer on 7 Jun 1947 in Rochester, Monroe County, New York, USA. Marguerite (daughter of Otto Frederick Kiefer and Florence Elizabeth Schwan) was born on 27 Sep 1919 in New York, USA; died on 6 Mar 2000 in Syracuse, Onondaga County, New York, USA. [Group Sheet] [Family Chart]