Charles T. Main, Inc.

Charles T. Main (later Chas. T. Main, Inc.), is an engineering firm headquartered in Boston, Massachusetts. Charles T. Main (1856-1943), founder of the firm, graduated from MIT in 1876. He was employed as a textile engineer from 1879-1892, and in 1893 began his private engineering practice in partnership with F.W. Dean. In 1907, Main and Dean each set up individual engineering firms. The Charles T. Main firm was incorporated in 1926 under the name Chas. T. Main, Inc.

The Western Office of Charles T. Main, located in Great Falls, Montana, was employed by the Montana Power Company and its affiliated companies on several water development projects, beginning in 1909. Henry A. Herrick was the chief engineer of the Western Office until his death in 1917. John D. Ryan was president of Montana Power Company and later Chairman of the Board of Anaconda Copper Mining Company.

From the description of Records, 1906-1967, (bulk 1906-1927). (University of Wyoming, American Heritage Center). WorldCat record id: 27928303