Background
Havenner was born in in Sherwood, Maryland on September 30, 1882.
United States representative politician
Havenner was born in in Sherwood, Maryland on September 30, 1882.
He attended Columbian College (now George Washington University) and Stanford University, afterwards working as a journalist in San Francisco.
Originally a Republican, served on the San Francisco Board of Supervisors from 1926 to 1936. As supervisor he fought unsuccessfully to fulfill the Raker Acting of 1913 and bring public power to the City and County of San Francisco. In 1936 he was elected to Congress as the candidate of the California Progressive Party, defeating Republican Florence Kahn.
In this race, he also received the Democratic nomination.
At the time, candidates in California could file to run for the nominations of multiple parties. Havenner served two terms in Congress.
In 1939 he registered as a Democrat, and ran unsuccessfully for mayor against Angelo Rossi. In 1952 he was defeated for reelection by Republican William South. Mailliard.
After leaving Congress he worked for the American Federation of Labor.
Havenner died died in San Francisco on July 24, 1967, and was buried at Cypress Lawn Memorial Park in Colma, California.
Republican Party, Democratic Party.
He was defeated for reelection to Congress in 1940, and was a member of the California Railroad Commission from 1941 to 1944.