Thanks to Historic Buildings of Connecticut for the citation regarding Mitchell’s second New Britain house, no longer extant. His surviving earlier house at 5 Hillside Place does not seem to have an architect attached.
Scott Meacham, Lamb & Rich, Architects, and Related Firms: Buildings and Projects, 1877-1932 (2011).
The Charles E. Mitchell house
Thanks to Historic Buildings of Connecticut for the citation regarding Mitchell’s second New Britain house, no longer extant. His surviving earlier house at 5 Hillside Place does not seem to have an architect attached.