The John Ruan House is a historic mansion in the Frankford neighborhood of Philadelphia, Pennsylvania. It was built in 1796 as the home of Dr. John Ruan (June 9, 1771, St. Croix, West Indies – July 2, 1845, Bristol, Pennsylvania), a physician and community leader. The 2½-story house, the oldest of its size and stature still standing in Frankford, was listed on the National Register of Historic Places in 1985. It was added to the Philadelphia Register of Historic Places on January 3, 1985. It has been continuously occupied since its erection and was previously the home of the Grand Army of the Republic Civil War Museum and Library. The museum housed Civil War and Grand Army of the Republic artifacts, books, and memorabilia. It is now privately owned. References External links Grand Army of the Republic Civil War Museum and Library "History of the Ruan House, Circa 1796" at the Grand Army of the Republic Civil War Museum and Library Listing at Philadelphia Architects and Buildings Museums in Philadelphia Houses on the National Register of Historic Places in Philadelphia Libraries in Pennsylvania American Civil War museums in Pennsylvania Historic house museums in Philadelphia Georgian architecture in Pennsylvania Houses completed in 1796 Philadelphia Register of Historic Places Frankford, Philadelphia 1796 establishments in Pennsylvania