HSJ is also responsible for the operation of the Peralta Adobe—Fallon House Historic Site and the Collection Center/Research Library & Archives, which are in downtown San Jose and Kelley Park, respectively.In 1949, a temporary replica of the first State House was built in San Jose Civic Plaza to celebrate the centennial of the first Legislature of California.The replica was moved to the Santa Clara County Fairgrounds in 1950 and became the State House Museum, where Arbuckle served as the first curator, collecting local historic artifacts.[6] By 1980, the Historical Museum had brought onsite the Associated Oil Company Gas Station, Chiechi House, Coyote Post Office, Dashaway Stables, Doctor's Office, Empire Fire House, Print Shop, and Steven's Ranch Fruit Barn.On weekends, selected exhibit buildings are staffed on a rotating schedule by volunteers, who also operate a vintage trolley over the length of the park, including under the Light Tower replica.