Constructed in 1904 by Dennis Mahoney, contractor and builder. He came from Connecticut to Texas in late 1800s to build Trinity University in Waxahachie (now in San Antonio). Cornerstone was laid March 21, 1902. He later moved to Waxahachie and erected this stately house, which later belonged to family of his son-in-law, W.B. Thompson. The building is now restored by the Ellis County Historical Museum and Art Gallery, Inc.