H. Louis Duhring, Jr.

Herman Louis Duhring, Jr. (March 24, 1874 - July 18, 1953) was an American architect from Philadelphia, Pennsylvania. He designed several buildings that are listed on the U.S. National Register of Historic Places.

The son of an Episcopal minister, he attended the Department of Architecture at the University of Pennsylvania, and worked in the architectural offices of Mantle Fielding and Frank Furness. In 1897, he was the winner of the first Stewardson Traveling Scholarship for study in Europe. He returned to Philadelphia in 1898, and opened his own office. In 1899, he formed a partnership with R. Brognard Okie and Carl Ziegler – Duhring, Okie & Ziegler. Okie left the firm in 1918, and the partnership continued as Duhring & Okie until 1924, after which Duhring worked independently.

Between 1910 and 1930, Dr. George Woodward commissioned about 180 houses in the Chestnut Hill section of Philadelphia, using mostly architects Edmund B. Gilchrist, Robert Rodes McGoodwin and Duhring. Among the earliest were Duhring's innovative "Quadruple Houses" (1910) – four attached houses huddled together so that each shared one long and one short wall. These provided tenants with more privacy than row houses, and were cheaper to build than detached houses. Woodward built two sets of "Quads" on Benezet Street, and later three more sets on Nippon Street in Mount Airy. Duhring also designed dozens of Cotswold-style houses for Woodward. A replica of Sulgrave Manor, the English ancestral home of George Washington, was an attraction at the 1926 Sesquicentennial Exposition in Philadelphia. Woodward bought its interiors, and had them installed in his own replica, designed by Duhring, that stands at 200 West Willow Grove Avenue in Chestnut Hill.

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