Rotch & Tilden
The firm was organized by partners Arthur Rotch and George Thomas Tilden. Both had studied at the Massachusetts Institute of Technology and at École des Beaux-Arts in Paris. Both had worked at the architectural firm of "Ware and Brunt".
They were called "society architects” because of their families and their clientele. The firm was perhaps best known for lavish summer houses in Bar Harbour, Maine and for townhouses lining Commonwealth Avenue in the Back Bay area of Boston.
According to architectural historian Harry Katz, "Rotch and Tilden developed an 'increasingly sophisticated blending of Georgian and Federal forms.” Two private residences in Montreal display an exhibit an eclectic blend of Jacobean and Richardsonian Romanesque styles.
For fifteen years, until Rotch's death in 1894, theirs was one of the most active architectural offices in New England.
- Saint Saviour's Episcopal Church and Rectory, Bar Harbor, Maine, 1877
- The Tides, Bar Harbor, Maine, 1887
- Bennett Building, Billerica Public Library, Billerica, Massachusetts, 1881
- Belvoir Terrace, 1884 - for Morris Ketchum Jesup, who served on the board of directors of the J.S. Morgan Bank.
- Blue Hill Meteorological Observatory, Milton, Massachusetts, 1885
- Church of the Holy Spirit, Mattapan, Boston, 1886
- Farnsworth Art Museum, Wellesley College, Wellesley, Massachusetts, 1887-1889 (razed 1958) 
- Cambridge Manual Training School, Cambridge, Massachusetts, 1889
- Frelinghuysen Arboretum, Morristown, New Jersey, 1891
- Ventfort Hall, Lenox, Massachusetts, 1891-1893 - for Sarah Morgan, sister of J. P. Morgan; the house was used as the Orphanage in the movie “The Cider House Rules.”
- Old Public Library, now the Exeter Historical Society, Exeter, New Hampshire, 1894
- Sea Urchins, mansion for Burton Harrison and now part of College of the Atlantic, Bar Harbor, Maine
- Peavey Memorial Library, Eastport, Maine, 1893
- Owens, Carole. "Rotch and Tilden, the High Society architects", The Berkshire Edge, August 8, 2017
- "Rotch, Arthur", Biographical Dictionary of Architects in Canada
- "Belvoir Terrace", Archiseek
- "Mattapan Square", Dorchester Atheneum, accessed 11/10/10
- On the boards: drawings by nineteenth-century Boston architects By James F. O'Gorman, Wellesley College
- "The Frelinghuysen Arboretum"