The area was originally called St. Mary's Corners (other small settlements in the area were often simply referred to in this way, such as Scott's Corner, now Swanton, and Raab's Corners, where Marygrove Church is located). The name was changed to Caragher, and then to Assumption. Assumption is in Amboy Township, Fulton County, on St. Route 64, where there are a few homes, the meat processing plant, the Church cemetery, and the parish buildings.
Source: Lawrence Mossing. The History of the Diocese of Toledo, STD. Lesher Printing, Fremont, Ohio. 1984. Pages 87 - 90.