He designed the Frank Pierce Carpenter House at 1800 Elm St, Manchester NH, which is on the National Register of Historical Places, Building #94000168. He and his father designed the Portland Savings Bank at 88-89 Exchange St., Portland OR.
B.M. Nedwcomb wrote:
He traveled extensively and was for several years a member of the "Artists' Colony" in Paris where he studied the works of both old and new masters of the art of designing. Among his most important architectural works were: The Carpenter Memorial Library, Manchester NH, First Baptist Church, Haverhill, Mass., the high altar in Albany Cathedral, Albany NY, besides a number of buildings in Honolulu. In addition to his architectural ability, Mr. Newcomb was a writer of some note, having written a number of poems which were set to music, and an opera, "The Maid of Marblehead", which was staged with success.