Hubert H. Bancroft Ranchhouse - Credit: Wikimedia Commons
The Hubert H. Bancroft Ranch House is a historic house museum at 9050 Memory Lane in Spring Valley, California. Built in 1856, it is the oldest Anglo-American building in the town. From 1885 until his death in 1918, it was home to Hubert Howe Bancroft, a pioneering historian of the western United States, Mexico, and Central America. Now managed by the local historical society as a museum, it was designated a National Historic Landmark in 1962 for its association with Bancroft, and was registered as a California Historical Landmark in 1958. Read more on Wikipedia
Source: en.wikipedia.org