| Name | John C Koopmann |
|---|---|
| Sex | male |
| Birth Date | June 11, 1890 |
| Death Date | February 19, 1987 |
| Age at Death | 96 years, 8 months, 8 days old |
| Birth Place | California |
| Death Place | Alameda County, California |
| Mother's Maiden Name | Kroeger |
| Social Security Number | 546-58-4747 |
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