[Johannes]

Hi Marcel

Your Grandfathers claims with 3./ZG 76 have not survived on the micro films, so anything mentioned we cannot be 100% sure about. With the Nachtgeschwader I can find nothing for him, most units do have entries on the micro films before the daily entry micro film take-over in(usually) late July 1942, but again I can find nothing for him. However with NJG 100 there as several claims on a micro film giving time and date only, he could be one of these claimants. Also with any other unit he doesn't appear on the micro films unless a name I have not been able to identify. Best thing is to search through his logbook. Even here details of claims are often so brief, and there is no guarantee they were confirmed, but a great help to anybody interested, and there are several collectors of logbooks around.
Like your Grandfather Karl Gratz just didn't like to talk about the war. If you think about it in later life it becomes just a small part of there life!

Kind Regards

Johannes

P.S I will search through my losses records(which are incomplete) and see if there is anything on him.