William married Elizabeth Lee Owen 22 Jun 1855, , , Prince Edward Island, Canada. Elizabeth (daughter of Arthur Lee Owen and Mary Jardine) was born 8 Apr 1825, Cardigan, , Prince Edward Island, Canada; died 25 Sep 1914, Mendocino, , California, United States; was buried 27 Sep 1914, Hillcrest Cemetery, Mendocino, California, United States. [Group Sheet]

1. Emma Shirley (Daisy) Kelly was born 2 Aug 1859, Mendocino, , California, United States; died 13 Aug 1953.
2. Russell Blair Kelly was born 29 Jun 1863, Mendocino, , California, United States; died Abt 20 Nov 1886, Mendocino, , California, United States; was buried 9 Nov 1886.
3. Elise Abigail Kelly was born 26 Feb 1866, Mendocino, , California, United States; died 10 Nov 1951, San Francisco, , California, United States.
4. Otis William Kelly was born 21 Jul 1869, Mendocino, , California, United States; died 26 Dec 1937, San Francisco, , California, United States; was buried , Hillcrest Cemetery, Mendocino, California, United States.