Percy married Olive Rich Millett on 1 Jun 1918 in Suffolk, New York, United States. Olive was born on 4 Dec 1888 in Adelaide, South Australia, Australia; died on 7 Aug 1969 in Port Jefferson, Brookhaven, Suffolk, New York, United States; was buried in Cedar Grove Cemetery, Patchogue, Brookhaven, Suffolk, New York, United States. [Group Sheet] [Family Chart]

Family/Spouse: Agnes Mildred Romano. Agnes was born on 4 Mar 1899 in Huntington Station, Huntington, Suffolk, New York, United States; died on 10 Feb 1994 in Calverton, Riverhead, Suffolk, New York, United States; was buried in 1994 in Cedar Grove Cemetery, Patchogue, Brookhaven, Suffolk, New York, United States. [Group Sheet] [Family Chart]