Thanks Matti, this is a confirmation of what I have in my sources.
Concerning Uffz Schmidt of I./JG 76, the official Dutch crahs list had three I./JG 76 in Arnhem area on 19 September: Uffz H Schmidt, Uffz Treibmann and Lt Reich, but these entries have very few details.
See
http://www.defensie.nl/media/verlies...m46-154755.pdf
Uffz Paul Schmitt is listed by the same source on 29 September 1944 with an identified aircraft (type and WNr)