Source Information

Ancestry.com. A brief report on the origin of Crawford County, Pennsylvania, U.S.A. and its political subdivisions [database on-line]. Provo, UT: Ancestry.com Operations Inc, 2004.
Original data: Adamson, Charles Ford.. A brief report on the origin of Crawford County, Pennsylvania, U.S.A. and its political subdivisions : together with a population chart, 1840-1960.. Meadville: Crawford County legal journal for the Crawford County Bar Association, 1965.