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| 0 | 18 Dec 1919 | Dundee Township, Monroe County, Michigan. He was the third of three children of Lena (Heiden) and John Koster, Jr. |  |
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| 4 | 8 Mar 1924 | Mary M. Knegendorf was born in Monroe, Monroe County, Michigan. |  |
| 4 | 20 April 1924 | Kathleen Lafferre was born in Ohio. |  |
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| 18 | 1937 | Dundee High School, Monroe County, Michigan. |  |
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| 21 |  | Dundee Township, Monroe County, Michigan. |  |
| 23 |  | Served in the Army during World War II |  |
| 25 | 1944 | Marvin married Kathleen Lafferre in Dundee, Monroe County, Michigan. |  |
| 27 | 1946 | Kathleen (Lafferre) Koster died of cancer at the age of 22 in Dundee, Monroe County, Michigan. |  |
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| 31 |  | Dundee Township, Monroe County, Michigan. |  |
| 37 | 1956 | Marvin John Koster and Mary M. Knegendorf were married in Dundee, Monroe County, Michigan. |  |
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| 43 | 1 July 1962 | John Koster, Jr died at the age of 82 in Toledo, Ohio |  |
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| 54 | 18 June 1973 | Lena Koster died at the age of 91 at the home of Marvin Koster in Raisinville Township, Monroe County, Michigan. |  |
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| 65 | 14 June 1984 | Harold Koster died at the age of 66 in Dundee, Michigan. |  |
| 65 | 8 Oct 1984 | Erlin Koster died in Bedford Township, Monroe County, Michigan. at the age of 80. |  |
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| 79 | 3 July 1999 | Mercy Memorial Hospital in Monroe, Monroe County, Michigan. |  |
 | 6 July 1999 | Maple Grove Cemetery, Dundee, Monroe County, Michigan. |  |
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