Hi Albert ,
In reply to your message ,Yes I do know my family came from Burgenland , for my Father was born in 1901 in Hungaria
in a Town called Rete ,so obviously the must have lived there at the time and later moved tp Vienna.
Grandfathers name was Heinrich and he had a Grocerie busines till just before Hitler marched into Vienne.Maybe this is of some assistance to you. I would be very grate full if you where to write to me again with some more information