Clarke Historical Library, Central Michigan University, Bibliography for Benzie County City of Frankfort official website Frankfort-Elberta Area Chamber of Commerce Friends of the Point Betsie Lighthouse. Michigan Geology -- Clarke Historical Library, Central Michigan University. Michigan's Official Economic Development and Travel Site.
Clarke Historical Library, Central Michigan University, Bibliography for Benzie County City of Frankfort official website Frankfort-Elb?erta Area Chamber of Commerce Friends of the Point Betsie Lighthouse. Michigan Geology -- Clarke Historical Library, Central Michigan University. Michigan's Offi:cial Economic Development and Travel Site.