William married Susanah McMahon on 17 Sep 1889 in , Columbia, Wisconsin, United States. Susanah (daughter of John Edward McMahon and Elizabeth Ann Starr) was born on 24 Mar 1866 in Doylestown, Columbia, Wisconsin, United States; died on 20 Feb 1956 in Doylestown, Columbia, Wisconsin, United States; was buried in St. Patrick's Church Cemetery, Doylestown, Columbia, Wisconsin, United States. [Group Sheet] [Family Chart]

1. John Joseph Kennedy was born on 9 Sep 1890 in Doylestown, Columbia, Wisconsin, United States; died on 8 Jul 1947 in Minneapolis, Hennepin, Minnesota, United States.
2. Ruth Leona Kennedy was born on 19 Jan 1893 in , Columbia, Wisconsin, United States; died on 24 Sep 1975 in Sun Prairie, Dane County, Wisconsin, United States; was buried in St. Patrick's Church Cemetery, Doylestown, Columbia, Wisconsin, United States.
3. Leo James Kennedy was born on 23 Feb 1895 in Fall River, Columbia, Wisconsin, United States; died on 27 Oct 1976 in Columbus, Columbia, Wisconsin, United States.
4. Earl William Kennedy was born on 24 May 1897; died on 11 Aug 1981 in King, Waupaca, Wisconsin, United States; was buried on 13 Aug 1981 in St. Patrick's Church Cemetery, Doylestown, Columbia, Wisconsin, United States.
5. Bridget Elizabeth Kennedy was born on 19 Jun 1899 in Doylestown, Columbia, Wisconsin, United States; died on 1 Oct 1988 in , Columbia, Wisconsin, United States; was buried on 4 Oct 1988 in St. Patrick's Church Cemetery, Doylestown, Columbia, Wisconsin, United States.

James married Bridget Gilligan. [Group Sheet] [Family Chart]