RAF pilot flying with USAAF

[Brian]

Hi guys

Simply out of interest, why was Flg Off Shenberger RAF flying with 309FS?

Extract from 31FG history

November 1943, the 31 FG was starting to face renewed resistance from the Luftwaffe in Italy. There were numerous encounters throughout the month, resulting in seven enemy aircraft destroyed, one probably destroyed, and seven damaged. There were also four losses: Lieutenant Frost of the 308 FS on 5 November; Lieutenant Mann of the 307 FS on 18 November; Lieutenant Van Natta on the l9th; and Flying Officer Shenberger, a British pilot with the 309 FS. on 24 November.

NB: I can't find a Shenberger in CWGC

Cheers
Brian