Hi!
Had read your messages but can not answer yet in detail!
I also have relatives "AUST" who had lived in Neustadt / Slesia and other near areas until they had to leave because of the second world war.
Had stopped my family history investigation approx. 15 years ago and had no digital info available yet.... if you are still interested I need to check the papers stored at a different place.
I am Doris Aust, born in 1968 and currently live in a town near Heidelberg/Germany.
Regards,
Doris