William Earl Millikin was the Mayor of Seattle, Washington from 1941 to 1942.
Millikin was born in 1890 in Oswego, Kansas. He attended several schools including Baker University in Baldwin City, Kansas; the University of Oregon; the University of Washington; and the University of California.
Before the 1919–1920 school year, Millikin resigned his teaching position at Lincoln High School in Portland, Oregon.
In 1937 when Millikin was King County, Washington auditor he issued "hundreds of [marriage] licesnces [...] without the prospective bride and groom being compelled to appear" according to the Associated Press, who cited "white slavery" as the main opposition to Millikin's practices.
Millikin was second in the vote to William F. Devin during the Seattle mayoral primary in February 1941.
On March 8, 1941 Millikin was at the launching of the USS Carmick (DD-493) when he said it would be "heard in Australia and Tokyo" in front of ten thousand shipyard workers and United States Navy men.
During a stike of American Federation of Labor affiliated welders in October 1941 Seattle Mayor Millikin demaded the striking workers return to their jobs without negotiations.
Millikin supported the internment on Japanese Americans during World War II.