Helen Ackermann
1893 - 1963 (70 years)
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 | Bertram Thorp Blake 1918-1990 |
| Bertram Thorp Blake | |
| B: | 1918 |
| D: | 1990 |
| Helen Ackermann 1893-1963 |
| Helen Ackermann | |
| B: | 1893 |
| D: | 1963 |
| Bertram T. Blake Abt 1888-1969 |
| Bertram T. Blake | |
| B: | Abt 1888 |
| D: | 1969 |
| Scarsdale, Westchester County, NY | |