William Joseph McDonough (Living) first married Elizabeth Florence Moore, daughter of Bradford Moore & Florence Rideout. Born on 6 Jul 1939 in Boston, Suffolk Co., Massachusetts, U.S.A. Elizabeth Florence died in Sandwich, Barnstable Co., Massachusetts, U.S.A., on 7 Nov 1994; she was 55.

William Joseph McDonough (Living) second married Jacqueline Frances Chambers (Living), daughter of Charles Chambers & Teresa Davis.

Janet Ellen McDonough (Living) married Robert Edward Murphy, son of John Murphy & Ruth Graham. Born on 13 Oct 1938 in Woburn, Middlesex Co., Massachusetts, U.S.A. Robert Edward died in Indianapolis, Hamilton Co., Indiana, U.S.A., on 20 Mar 2008; he was 69.