Wyndham married Gretchen Jane Potin in 1970. Gretchen (daughter of Bernard Potin and Elizabeth B. Joachim) was born on 9 Feb 1932 in New Orleans, Orleans Parish, Louisiana, USA; died on 5 May 2014; was buried in Biloxi National Cemetery, Biloxi, Harrison County, Mississippi, USA. [Group Sheet] [Family Chart]