330-PS-3256 (45886 AC):  The USAF crew pictured here was used to track radioactive clouds resulting from atomic detonations at the Atomic Energy Commission’s Nevada Proving Ground during 1952 nuclear tests.  Cloud-tracing crews and planes performed work vital to the scientists, and also insured safety to commercial airliners and to people living outside of the test area in charting such courses of radioactive clouds.  Captain I.H. Watson, plane commander (far left), is shown briefing his cloud-tracing crew, left to right:  First Lieutenant N. J. DiFrancesco; First Lieutenant C.E. Coppage; Captain L. Stockton; Captain J.B. Slaughter; Second Lieutenant R. E. Fine; Master Sergeant J. H. Walker; Captain A. K. Johnson; Staff Sergeant E.C. Bishop; Staff Sergeant E. G. Hirsch; and Staff Sergeant C.E. Crown.  Photograph released March 16, 1953.  (5/5/2015).
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/127906254@N06/17206248409/">330-PS-3256 (45886 AC)</a>