H. Louis Duhring Jr.

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.

[5] 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.

[7] Duhring modernized the relocated "Rocky Mills" in a particularly sensitive way – by increasing the building's depth, he was able to insert bathrooms and closets between its unaltered front and back halves.

[8] In 1931, the Philadelphia Society for the Preservation of Landmarks hired Duhring to restore the Powel House (built c. 1765).