Hello Alain,
As I'm sure you know Sixteen of the 56FG P47's were downed on the 18th Sept 44.
This is just to confirm that you know of the 56th FG webpage at
www.56thfightergroup.co.uk which might be helpful.
Also I find that a/c noted as 42-25531 should be 43-25531, they are two different P47's, the 43- being I think the correct serial number.
Eight crashed or forcelanded in Allied Territory so hence no MACR's.
From the Mighty eighth Combat Chronology
Lt. William G. Bartle evaded.
David P. Kling evaded
2Lt Robert G. Kelley evaded.( NA has him as a POW of the 56 twin engine Fighter Group).
Lt. Thomas Guerrero jr KIA.
Capt. Gordon S. Stevens KIA.
2Lt. Trevor A. Edwards KIA.
2Lt. Elwood D. Raymond KIA.
1 other crash landed at Southminister pilot KIA.
2Lt. William M. Hartshoorn POW. (NA does not have him listed as a POW).
Lt. William W. McElhare POW. (NA has him as Kelley above 56 twin engine Fioghter group).
With the three names you have plus the Southminister name that would give 13 of the 16 pilots. Three/four more names needed.
Good hunting
Alex