Maginnis & Walsh (1906-1940), was a Boston-based architectural firm known for its ecclesiastical designs. In 1898, Charles D. Maginnis and Timothy F. Walsh went into partnership with Matthew Sullivan to form Maginnis, Walsh and Sullivan. In 1906, Sullivan withdrew and the firm was renamed Maginnis & Walsh.
In 1909, Maginnis & Walsh won the competition to build the new campus of Boston College in Chestnut Hill, Massachusetts. The collegiate Gothic design was deemed “the most beautiful campus in America” by The American Architect magazine and established the firm’s reputation in collegiate and ecclesiastical architecture. Maginnis & Walsh went on to design buildings at over twenty-five colleges and universities around the country, including the main buildings at Emmanuel College, Boston; the chapel at Trinity College, Washington, DC; and the law school at the University of Notre Dame. Between the firm’s founding in 1898 and the death of Timothy Walsh in 1934, the firm is credited with over 115 ecclesiastical works.