| Source: Kirkwood Historical Review (published by the Kirkwood Historical Society), 1962-2022 Location: St.L. / 05 / K636 | |
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| Last Name: | Helfenstein |
| First Name: | John |
| Middle Name: | P. |
| Title: | Mr. and Mrs. |
| Address: | 135 South Rock Hill Road |
| Volume: | III |
| Issue: | 1 |
| Date of Publication: | March 1964 |
| Page: | 10-15 |
| Remarks: | mentioned in journal of Ella Cecil Bodley, 1862 |
