The Brinton Museum located on the Quarter Circle A Ranch and formerly known as the Bradford Brinton Memorial Museum, is a museum and historic ranch located 2 miles (3.2 km) southwest of Big Horn, Wyoming. The ranch was built in 1893 by William Moncreiffe, a Scottish immigrant and successful businessman. In 1923, Bradford Brinton bought the ranch from Moncreiffe and expanded it to its current appearance. Brinton collected art and historical materials, particularly those relating to Native American history; after his death in 1936, his sister Helen converted the ranch to a museum displaying his collections.