(1866-1939) a U.S. Representative, was born in Standish (Richville) August 10, 1866. He attended the public schools, Gorham Normal School, and Bridgton Academy, and taught school. Hamlin was graduated from Bowdoin College, in 1900 and became superintendent of the South Portland and Cape Elizabeth schools 1901-1925.City Clerk of South Portland in 1913, he engaged in the real estate business at South Portland in 1925, and was also interested in farming. A member of the board of registration (1926-1932), Hamlin served as mayor in 1933 and 1934.
Elected as a Democrat to the Seventy-fourth Congress (January 3, 1935-January 3, 1937), he was chairman of the Committee on Memorials (Seventy-fourth Congress). An unsuccessful candidate for reelection in 1936 to the Seventy-fifth Congress, he resumed the real estate business and farming in South Portland until his death there July 27, 1939, with interment in Hamlin Cemetery in Standish (Richville).