Harry married Alice Margaret McNamara on 1 Sep 1925 in Detroit, Wayne, Michigan, United States. Alice (daughter of Sarsfield M. McNamara and Bridget "Bid" Reilly) was born on 14 Dec 1903 in Detroit, Wayne, Michigan, United States; and died. [Group Sheet] [Family Chart]

1. Mary Alice Bridget Cavanaugh was born about 1927; and died.
2. Sally Ann Cavanaugh was born about 1929; and died.
3. John Cavanaugh was born about 1931; and died.
4. Joseph Cavanaugh was born about 1932; and died.
5. Patrick Cavanaugh was born about 1933; and died.
6. Michael Stashfield Cavanaugh was born on 3 Apr 1935 in Detroit, Wayne, Michigan, United States; died on 26 Apr 2014 in California, United States; was buried on 29 May 2014 in California, United States.
7. Suzanne Cavanaugh was born about 1939; and died.