Sean married Shirley M (Killfoil) O'Neil 25 Jun 1988, Newton Kansas. Shirley (daughter of Fred Elton Killfoil and Lyla Marie (Jantz) Killfoil) was born 6 Oct 1945, Newton Kansas; died 25 Jan 2022, Wichita Kansas; was buried 31 Jan 2022, Church of God of Firstborn Cemetery. [Group Sheet]