Claim: The diameter of the James Bruce Round Barn, located in Illinois city of Freeport, measures 58 feet 8 inches and was designed by the team of Jeremiah Shaffer and the Haas Brothers.
Evidence: The James Bruce Round Barn is a round barn located near the Stephenson County, Illinois city of Freeport, United States. The diameter of the James Bruce Round Barn is 58 feet 8 inches (about 17.7 m). The Bruce Round Barn is the last known round barn constructed by the team of Shaffer and the Haas Brothers. Jeremiah Shaffer and the Haas Brothers