O'Neil married Marjorie Cathleen (Kathleen) SLAUGHTER on 12 Jul 1947, and was divorced about 1949 in Obion, Tennessee, United States. Marjorie (daughter of Herbert Floyd SLAUGHTER and Mazie May FULCHER) was born on 26 Apr 1929 in Obion, Tennessee, United States; died on 19 Jan 2009 in Mayfield, Graves, Kentucky, United States; was buried in Union City, Obion, Tennessee, United States. [Group Sheet] [Family Chart]