Betty Koster was born April 1881 in Germany and died 1960 in Grand Rapids, Kent County, Michigan, United States of unspecified causes. She married Albert Henry Bauer (1866-1935) .
|Offspring of Albert Bauer and Betty Koster (1881-1960)|
|Donald Henry Bauer (1900-1962)||22 November 1900 Michigan, United States||September 1962 Kent County, Michigan, United States|| Lila Flanagan (1906-)|
Laurel Glazier (1907-1999)
|Albert Edward Bauer (1902-1906)|
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