| Name | Leonard M Koss |
|---|---|
| Sex | male |
| Birth Date | April 21, 1911 |
| Death Date | January 2, 1974 |
| Age at Death | 62 years, 8 months, 12 days old |
| Birth Place | Illinois |
| Death Place | San Diego County, California |
| Social Security Number | 346-09-9346 |
| Name | Leonard M Koss |
|---|---|
| Sex | male |
| Birth Date | April 21, 1911 |
| Death Date | January 2, 1974 |
| Age at Death | 62 years, 8 months, 12 days old |
| Birth Place | Illinois |
| Death Place | San Diego County, California |
| Social Security Number | 346-09-9346 |