Studied law, Vancouver, British Columbia and University Washington.
Before becoming Governor, Elvidge had been an attorney in Seattle, Washington. As Governor, Elvidge improved Guam"s school system. He also cut spending while improving the efficiency of many departments.
Elvidge resigned in 1956.
He died at the age of 87 in Seattle on July 14, 1982.
Active in civic work, Seattle. Lieutenant infantry United States Army, 1918-1919. Member Seattle Bar Association (president 1941), Washington State Bar Association (governor 1943-1946), American Bar Association, English-Speaking Union (past president), University Washington Law School Alumni Association (past president), American Legion, Rainer Club, College Club (past president), Masons (33 degree), Sigma Alpha Epsilon, Phi Delta Phi.
Married Anita Emily Miller, 1918. Children: Marthanna (Mistress John Veblen), Robert, Carolyn Eaton.