1Sauk County, Wisconsin Courthouse, Volume 57, Page 329, Sauk County Courthouse Recorder. "Gary John Koberstein born on 27 Mar 1947 at Baraboo, Sauk, WI to Father: John L. (birthplace: Baraboo, Occupation Laborer) and Mother: Mildred I. Karcher (birthplace: Brooklyn, N.Y.)." Reserached 16 Sep 1999.
1Sauk County, Wisconsin Courthouse, Sauk County Courthouse Recorder. "Gary John Koberstein married Barbara Ann Schilling on 8 Oct 1966 at Baraboo, Sauk, WI. Grooms birthplace: WI to Father: John and Mother: Mildred Karcher. Brides birthplace: Montana to Father: Robert H. Schilling and Mother: Marie Catherine Manforton."
2Sauk County, Wisconsin Courthouse, Sauk County Courthouse Recorder.
1Wisconsin Marriages 1973-1977, Ancestry.com. "Name: Gary J Koberstein
Estimated Birth Year: 1948
Age: 25
Gender: M (Male)
County of Residence: Sauk
Spouse: Schlender
Spouse's Estimated Birth Year: 1953
Spouse's Age: 20
Spouse's Gender: F (Female)
Spouse's County of Residence: Sauk
Marriage Date: 13 Feb 1973
Marriage County: Sauk
Certificate Number: 003355
Microfilm Roll Number: 35."