Claire Allen  Claire Allen (July 29, 1853 – December 22, 1942) was an American architect prominent in southern Michigan in the early twentieth century, and best known for designing several county courthouses. He was considered a "master regional architect". Allen moved to Jackson as a young man, and practiced architecture there for 52 years. He established the architectural firm of Claire Allen & Sons. Some 100 structures are attributed to him. His firm designed numerous examples of American neoclassical architecture and colonial revival buildings in Michigan and Iowa, but had a range that encompassed Beaux-Arts Classical and Jacobean Revival style as well. Some buildings designed by Allen include:   Photos  Books  Web Articles