Christine R. Mullenberg Ray, Certficate of Completion, April 13, 1942.
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CERTIFICATE OF COMPLETION OF COURSE Entitled BOMBS AND GASES
This is to certify that CHRISTINE R. MULLENBERG
Has successfully completed the above-named course by attending 6 lectures and passing a written examination with a grade of 95%.
Date April 13, 1942. Wm. R Blair Col. U.S.A. Retired Harry M. Deugler Capt., Inact - Res