Williamstown, Glengarry County, Ontario, Canada
Williamstown, Glengarry County, Charlottenburgh Township, South Glengarry, at the junction of county Roads 17 & 19 on The River aux Raisin or Black River. also known as Muileann Sir Ian translated to Sir John's Mills; named after Sir William Johnson father of Sir John Johnson, Milltown.
St. Mary's Catholic Church, Williamstown, Glengarry County, Ontario, Canada
