Date: | 08 08 1950 |
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Description: | Portrait of Professor Joseph Hirschfelder, University of Wisconsin chemist. He also is project director for the U.W. Naval Research Laboratory, member of t... |
Date: | 09 13 1954 |
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Description: | Wisconsin's civil defense director, Major General Ralph Olson (seated), hosts four European civil defense directors on a tour of civil defense units in the... |
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