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| Death: | Died |
| Managed by: | Stephen Harper |
| Last Updated: | |
Hartwell was a graduate of Albright and Columbia. He worked as a chemist for Dupont, primarily in the field of explosives. His patents included U.S. Pat. Nos. 2194544; 2425310; 2362617; 2999014; and 3052578.
News article reporting his 11th birthday party may be found here: http://news.google.com/newspapers?nid=1955&dat=19170623&id=xI4tAAAAIBAJ&sjid=sZ0FAAAAIBAJ&pg=6219,3020368
| 1906 |
June 19, 1906
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| 1933 |
1933
Age 27
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| 1983 |
September, 1983
Age 77
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| ???? |
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