Historical Images Collection
| Ref. No. | P001-325-11c |
| Subject | John Charles Olsen |
| Location | Brooklyn, New York |
| Date | 1923 |
| Caption | John Charles Olsen |
| Notes | Professor of Chemical Engineering at Polytechnic Institute, Brooklyn |
| Source | The 1923 Polywog, p. 11. |
John Charles Olsen picture