The Fountaingrove area was first settled by Thomas Lake Harris, the first of a wave of Utopians to come to Sonoma County.
Harris established a commune on the site in 1875 called "New Eden of the West," part of his Brotherhood of New Life project. The colony included 1400 acres of land (purchased for a mere $21,000), upon which he constructed a number of buildings including a book press and a winery which produced some 70,000 gallons of wine in 1886.
Built in 1899, the Round Barn is a landmark for the Fountaingrove Ranch. The Round Barn was built by John Clark Lindsay, a contractor who came here from Napa in 1898. His son Jack at the age of twelve, earned his first wages on the round barn job, driving the wagon that hauled the building materials.
Lindsay was hired to build the barn by Kanaya Nagasawa who came to Sonoma County with Harris. Thomas left here in 1891 under a cloud of scandal leaving Kanaya to inherit the ranch and the winery. He lived there until his death in 1934.