| Source: Mary Institute Alumnae Directory, 1859-1951 Location: St.L. / 376 / M36a / 1951 | |
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| Last Name: | Block |
| First Name: | Helen |
| Middle Name: | L. |
| Title: | Mrs. |
| Maiden Name: | Sylvester |
| Class Year: | 1877 |
| Page: | 5 |
| Remarks: | deceased |
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