(1913) and 15 Broad Street (1927), the J. P. Morgan & Co. Building on the southwest corner. Their practice extended to townhouses on Manhattan's Upper East Side, of which 41 East 65 Street (1910), 11 East 91st Street and 49 East 68th Street (1914) remain. The New York Society Library, a lending library with a long genteel tradition in New York, moved into the former John Rogers House at 53 East 79th Street. Projects New York City projects The Nathaniel L. McCready House (1896) 123 East 63rd Street (1900) St. Regis New York (1901–1904), 2 East 55th Street (NYC Landmark) 123 East 70th Street (1902–1903) The Knickerbocker Hotel (1902–1906), 1462–1470 Broadway (NYC Landmark and NRHP-listed) The Links Club (1902), 36 East 62nd Street B. Altman and Company Building (1905), 351–57 Fifth Avenue (NYC Landmark) Engine Company 7, Ladder Company 1, FDNY (1905), 100 Duane Street (NYC Landmark) John B. and Caroline Trevor House (1909–1911), 11 East 91st Street (NYC Landmark) Benson Bennett Sloan House (1910), 41 East 65th Street Bankers Trust Company (1910–1912), 14 Wall Street (NYC Landmark) J.P. Morgan & Company Building (1913), 23 Wall Street (NYC Landmark and NRHP-listed) J. William and Margaretta C. Clark House (1913–1914), 49 East 68th Street (NYC Landmark) New York Society Library (1917), 53 East 79th Street (NYC Landmark) Extension to the New York Stock Exchange Building (1923), 8 Broad Street (NRHP-listed) American Museum of Natural History southeast extension (1912–1924), West 77th Street and Central Park West 44 Wall Street (1927) 15 Broad Street (1928) The Hayden Planetarium (1935) at the American Museum of Natural History, West 81st Street and Central Park West Projects outside New York City Bixby Memorial Free Library, (1911), Vergennes Vermont Jordanville Public Library (1907–1908), Jordanville, New York, NRHP-listed St. Elizabeth's Memorial Chapel (1921), Tuxedo, New York The Gulf Building, now Gulf Tower (1932), Pittsburgh, Pennsylvania, in association with Edward Mellon; The Oregon State Capitol (1936–38) in Salem, in association with Francis Keally, NRHP-listed American National Red Cross, 17th and D Sts., NW Washington, D.C. Trowbridge & Livingston, NRHP-listed United States Post Office and Courthouse, Jct. of 7th and Grant Streets. Pittsburgh, Pennsylvania Trowbridge & Livingston, NRHP-listed References External links Emporis: Trowbridge & Livingston Defunct architecture firms based in New York City 1894 establishments in New York (state)