Education
He attended the public schools in California.
He attended the public schools in California.
He studied at the University of California at Berkeley in 1897 and 1898. He served as president of the First National Bank, Gilroy, California, from 1914 to 1918, and served as officer and director of various corporations. Hersman was elected as a Democrat to the Sixty-sixth Congress (March 4, 1919 – March 3, 1921).
He was an unsuccessful for reelection in 1920 to the Sixty-seventh Congress.
He died in San Francisco, California, March 7, 1954. He was interred in Nottingham Cemetery, Colora, Maryland.
He served as member of the board of directors of the American Trust Company, Gilroy, California.