Adriano,
A little about (then) Capt. Baer's presence at RAF Catfoss on p. 16 ("More Glimpses into the Training") here:
http://www.368thfightergroup.com/fil...-hx-apr-44.pdf
The Richard R. Steiner I suggested not likely the person. He was a C-47 pilot in the CBI...
Lt Rosenberger was a P-51 pilot with 361st FG.
Regards,
Leendert