He married Marchie Lorraine Watson, daughter of James Watson and Grace Geone, on 7 November 1931. By 1933 they had moved to Seattle and lived at 310 19th Avenue N. Jack worked as an oiler. Three years later, he worked in a mill. By 1940 Jack and his family lived in Tahuya, Washington, and Jack worked as a truck driver for a logging company. The couple had three children during their marriage, but divorced sometime before 1945:
- Jack Earl King born on 21 March 1934 married Beverly Kay Moore.
- Glenda Lynne King born 19 April 1936 married and had one son named Ira J. Mitrany in 1954, died 3 December 1954.
- Jon King likely born after the 1940 census was enumerated.
Jack served in the U.S. Navy during World War II and the Korean Conflict.
On 12 March 1945 he married Frances Beverly Muir at First Christian Church in Seattle. He was a lieutenant (jg) in the U.S. Maritime Service when they married. Jack and Frances had one daughter before divorcing.
After the Korean Conflict, Jack worked as a port engineer in Oakland, California.
On 4 February 1977 he married Irmgard Fredricka (Jahnig) Lane Swanson in Reno, Nevada. They lived in Tahuya where Jack was active in the port commission and the city fire department.
Jack died on 23 February 1991 in Tacoma, Washington. His third wife, Irmgard, died on 28 March 2013 in Lakewood, Washington.
1910 US Federal Census, Census Place: Fort Steele, Carbon, Wyoming; Roll: T624_1745; Page: 1A; Enumeration District: 0032; FHL microfilm: 1375758
1930 US Federal Census, Census Place: McKenna, Pierce, Washington; Roll: 2510; Page: 4B; Enumeration District: 0052; Image: 101.0; FHL microfilm: 2342244
1940 US Federal Census, Census Place: Tahuya, Mason, Washington; Roll: T627_4352; Page: 1A; Enumeration District: 23-30
Seattle Daily Times, 15 March 1945
The Morning News Tribune, 25 February 1991
US, City Directories, 1822-1995, 1933 Seattle, WA (Jack T. King and Marchie L. King)
US, City Directories, 1822-1995, 1936 Seattle, WA (Jack T. King and Marchie L. King)
US, Department of Veterans Affairs BIRLS Death File, 1850-2010, 1991 King, Jack
US, Nevada Marriage Index, 1956-2005, 1977 King, Jack T. - Swanson, Irmgard F.
US, Public Records Index, Volume 1, 1994 Tacoma, WA (Jack T. King)
US, Social Security Applications and Claims Index, 1936-2007, Number: 532-12-6972
US, Social Security Death Index, 1935-2014, Number: 532-12-6972; Issue State: Washington; Issue Date: Before 1951
US, Washington Death Index, 1940-1996, 1991 King, Jack T.
US, Washington Marriage Records, 1865-2004, 1945 King, Jack T. - Muir, Frances B.
US, Washington Marriage Records, 1865-2004, 1931 King, Jack T. - Watson, Marchie L.
US, Washington Tacoma Obituary Index, 1882-2014, 1991 King, Jack T.