As a partner with his brother, Henry and one other man, Frank T. Wheeler, in 1891, he formed the Trumbull Electric Company, which produced electrical supply parts including porcelain fixtures, switchboards and panels. He served as President of that company from 1911 to 1944. He also was board chairman of
Colonial Air Transport, Incorporated; director and treasurer of Plainville Realty Company; president of Plainville Trust Company; and director of
Connecticut Light & Power Company (Eversource Energy). Trumbull joined the First Connecticut Infantry in 1891, attaining the rank of
colonel in the State Guard. He was a
Republican. Trumbull served in the
Connecticut Senate and as
president pro tempore from 1923 to 1924, succeeding
William H. Hall. Elected the
79th lieutenant governor in November 1924, Trumbull held that office from January 7 to January 8, 1925, as the
governor,
Hiram Bingham III, resigned after one day as a governor to become a
U.S. Senator. Trumbull had learned to pilot his own airplanes and was dubbed "The Flying Governor" because he often flew into
Robertson Field Airport in Plainville. Trumbull was a
conservative Republican and made sure to balance the State budget. He also sought to assist Connecticut's businesses. During his terms in office, the government started a building program and worked at improving the roads of the State. He sponsored an aviation development, and launched numerous construction projects. He was re-elected as governor two times, in 1926 and 1928, but chose not to run for reelection in 1930. He left the office on January 7, 1931. However, he ran for the office again in 1932, but was defeated by his successor,
Democratic incumbent
Wilbur Cross. Trumbull continued to oversee his business interests. He also served as a Delegate to the Republican National Convention from Connecticut in 1920 as Alternate. Organizer and president, Trumbull Electric Manufacturing Co.; board chairman, Colonial Air Transport, Inc.; director and treasurer, Plainville Realty Co.; president, Plainville Trust Co.; director, Connecticut Light & Power Co.; delegate to
Republican National Convention from Connecticut, 1920 (alternate), 1924, 1928, 1932, and 1936. He stayed active as vice president of the Connecticut Humane Society and the
Connecticut Historical Society. ==Personal life==