California Historical Landmarks in Napa County
California Historical Landmark 686
Site of Kelsey House
500 Feet Northwest of Intersection of State Highway 29 and Diamond Mountain Road
1.1 Miles South of Calistoga
Built Around 1841
Nancy Kelsey arrived in California in 1841 with the Bidwell-Bartleson party and settled with her family south of present-day Calistoga. Now the hearthstone is all that can be seen of the house. The property is owned by the Rockstrohs.
Citation from California Office of Historic Preservation
Here's a list of other California Historical Landmarks which had no bear flag plaque when we visited them.