A break through, a member of the other forum checked his copy fo the microfilm closer and found that the crew were:
pilot Lt. Howard B. Wank,
co-pilot Lt. Marvin (NMI) Butz,
crew chief Sgt. Raymond H. Kelley,
radio operator S/Sgt. Charles T. Taylor
and the passengers killed came from the
904th Air Base Security Battalion
One step closer!