| Source: Necrology scrapbooks, Volumes 1-32 Location: Reading Room / St.L. / 920 / N28 | |
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| Last Name: | Heideman |
| First Name: | Harold |
| Middle Name: | F. |
| Death Year: | 1968 |
| Age: | 70 |
| Volume: | 28 |
| Page: | 76 |
| Remarks: | aviation pioneer, died in Illinois |
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