https://www.dafhistory.af.mil/About-Us/Fact-Sheets/Display/Article/432986/opfell-ronald-n-lt-colonel/
OPFELL, Ronald N. (Lt. Colonel) Air Force Historical Research Agency Display
Call No.: K239.0512-286IRIS No.: 00904211IRIS Tape No.: 00904212Accessibility: OPENPages/Time: No transcript/2:13Class: UDate/Location: 8 June 1970/Maxwell AFB...
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