Joseph Walter Northrop (1860–1940) was an American architect.

He practiced in Bridgeport, Connecticut and was prominent in that city in the late 19th and early 20th centuries. Northrop was born in New Haven on July 8, 1860. In 1882 he moved to Hartford where he worked for architect George Keller. In 1885 he relocated to Bridgeport to open his own office.Ransom, David F. Geo. Keller, Architect. 1978. He married Mary Alvira (Ogden) Northrop. He had a son, Joseph W. Northrop, Jr. (b. 1886), who would go on to be a prominent architect in Houston, Texas.Encyclopedia of American Biography. 1970 Northrop died in Bridgeport May 24, 1940.

Architectural works Bridgeport, Connecticut Isaac W. Birdseye House, 733 Fairfield Avenue (1886) - DemolishedSanitary Engineer 4 June 1887: 10 Charles G. Downs House, 127 Broad Street (1887) - DemolishedAmerican Architect and Building News 31 Dec. 1887 George Comstock House, 239 Park Avenue (1887) - still extant at the corner of Park Ave and Atlantic StMarina Park Historic District NRHP Nomination. 1982 Benjamin F. Squire House, 1601 Fairfield Avenue (1888–89) - AlteredArchitecture and Building 3 Nov. 1888: 3 Edward W. Marsh House, 984 Fairfield Avenue (1888) - DemolishedAmerican Architect and Building 27 July 1889 Frank Ashley Wilmot, Sr. House (President of American Tube & Stamping Mfg. Co.-formerly Wilmot & Hobbs Mfg. Co.) (1865-1915), 633 Clinton Avenue (1889) 'Stratfield Historic District' 'Number 3 in a series titled "Our Attractive Homes", published weekly in Bridgeport Standard; appeared 31 January 1891.' Currently (2017) used as office of Dr. James Caserta, DDS Willis F. Hobbs House (President of The Bridgeport Hardware Manufacturing Co.) (1854-1939) (Brother in Law of Frank Ashley Wilmot, Sr.), 579 Clinton Avenue (originally 303 Clinton Avenue) (1891) - AlteredAmerican Architect and Building News 18 July 1891: 44 Thomas C. Wordin House, 1139 Fairfield Avenue (1892) - Now home to the local union of the TeamstersAmerican Architect and Buildings 19 Aug. 1893 First Baptist Church, 126 Washington Avenue (1893–94)"First Baptist Church of Bridgeport (1893)". http://historicbuildingsct.com/. 29 July 2012 Thomas C. Wordin House, 33 Yale Street (1893) - An investment property. AlteredScientific American Jan. 1894: 2 Edward W. Harral House, 123 Harrison Street (1899) - Demolished. Currently the corner of Golden Hill & LafayetteEngineering Record 22 July 1899: 186 Second Baptist Church, 774 Kossuth Street (1902)American Architect and Building News 2 Aug. 1901: x Burroughs Home for Women, 2470 Fairfield Avenue (1903) - Now the Burroughs Community CenterConnecticut Historical Society Bulletin 1991: 81 Remodeling of Bridgeport City Hall, 202 State Street (1905) - No longer the city hallConnecticut Historical Society Bulletin 1991: 81 William R. Webster House, 208 Brooklawn Avenue (1906)International Studio Feb. 1910: 34-36Stratfield Historic District NRHP Nomination. 1979 Maplewood Avenue School Annex, 434 Maplewood Avenue (1908)American Architect 30 Sept. 1908: 17 Richard I. Neithercut House, 180 Brooklawn Avenue (1908)International Studio Feb. 1910: 34-36Stratfield Historic District NRHP Nomination. 1979 George T. Hatheway House, 800 Clinton Avenue (1910)Paint, Oil and Drug Review Dec. 15 1915: 33 Henry C. Stevenson House, 57 Coleman Street (1912)Domestic Engineering 3 Aug. 1912: 148Merchant Plumber and Fitter 1912: 154 Read School, North Avenue between Garland & Reamer Streets (1914) - DemolishedHistory of Bridgeport. New York: S. J. Clarke Publishing Co., 1917 Edwin M. Jennings Co. Building, 2 Lafayette Square(1919) - Altered beyond recognitionLumber 7 July 1919: 53"An Automobile Sales and Service Building, Bridgeport, Conn." Architecture March 1921: 100 Stone Bridge, Beardsley Park(1921) - Connects Bunnell Island to the park mainland Summerfield M. E. Church, 110 Clermont Avenue (1922)American Contractor 30 Sept. 1922: 49 D. M. Read Co. Department Store, 1142 Broad Street (1924–25) - In association with architects and engineers Monks & Johnson of Boston.Engineering News-record 1924: 267 Golden Hill Apartments, 225 Golden Hill Street (1925)Engineering News-record 1925: 67 Shelton (Cambridge) Apartments, 2209 Main Street (1931–32)Engineering News-record 1931: 1229

Other locations St. John's Episcopal Church, 23 Main Street, Essex, Connecticut (1897)Church Standard 27 Nov. 1897: 132 Essex Public Library, 3 South Main Street, Essex, Connecticut (1898) - No longer used as the library"History of the Library". www.youressexlibrary.orgArchitectural Review Jan. 1902: 52 Mary Taylor Memorial M. E. Church, 168 South Broad Street, Milford, Connecticut (1892)American Architect and Building News 26 March 1892: 206 Taylor Memorial Library, 5 Broad Street, Milford, Connecticut (1894) - Now home to the Milford Chamber of Commerce. Lauralton Hall, 200 High Street, Milford, Connecticut (1897) - Built as the estate of Charles H. Pond in 1864. Henry A. Taylor had Northrop redesign the entire house. Now a girls' catholic schoolPlumbers Trade Journal, Gas, Steam and Hot Water Fitters' Review 1 Jan. 1898: 18Historical Sketches of the Town of Milford. New Haven (CT): Tuttle, Morehouse & Taylor Co., 1914"The Governor Charles H. Pond House (1845)". http://historicbuildingsct.com/. 16 Dec. 2010 Colin M. Ingersoll House, 475 Whitney Avenue, New Haven, Connecticut (1896) - Described as a "knowledgeable variant of the Chateauesque mansions of Richard Morris Hunt"Caplan, Colin M. A Guide to Historic New Haven, Connecticut. 2007 Lexington Tower, 369 Lexington Avenue, New York, New York (1926)Power 1926: 394 First Reformed Church, 35 South Broadway, Yonkers, New York (1894) - DemolishedReal Estate Record and Builders' Guide 26 May 1894: 846 St. Paul's Episcopal Church, 20 Fair Street, Nantucket, Massachusetts (1901–02)American Architect and Building News 29 March 1902: 103"Parish History". http://www.stpaulschurchnantucket.org/. n.d

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