Alex, an interesting problem. The copy of the MACR on line at the National Archives is the same unreadable version as on fold3. I can only find a record for:
Grant M Powers 33207270
I can't find the officer numbers for the 3 Lts nor anything for Goitein.
Is Messinger the man involved in the Palomares H-Bomb incident?
https://www.thisdayinaviation.com/ta...y-g-messinger/