Hi, Steve
According to the GenQu listings, there seems to be a problem locating loss details for Wenchowski, the loss in which Alder was involved is readily found:
http://www.ahs.no/ref_db/lw_loss_pub...?lossid=120259
The unit reported a total of aircraft losses, split on the Gruppen as follows:
Stab - None
I. Gruppe - 1 aircraft missing
II. Gruppe - 5 aircraft missing, 1 damaged by Flak, 1 damaged by fighters
III. Gruppe - 9 aircraft missing
There are loads of corrections for these loss dates, mostly added from so-called Vordruck II (which is the 'slang' for the Namentliche Verlustemeldung) and LP-Meldungen (from the Personalamt).
However - in these the name Wenchowski does not appear. In fact the name does not appear in any of the 13000+ corrections that we have registered, and the only possibility then is that this correction was made as late as 1944-1945, in the period where the GenQu6Abt loss records are missing, or that he in fact was not posted missing, wounded or killed on this date, or his name has been misspelled beyond any recognition!
Regards,
Andreas B