- Unidad documental simple
- 1945
Parte deWalter Edgar Harris fonds
Harris's Certificate of Fitness from Fort Snelling Minnesota, dated June 4, 1945.
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Certified Instructor Gas and Bomb Defense
- Unidad documental simple
- 1942
Parte deWalter Edgar Harris fonds
Harris's "Certified Instructor Gas and Bomb Defense" card. The University of Minnesota required that chemistry graduate students become certified instructors in gas and bomb defense in case the US was attacked.