i have searched for you, because never have known that in Kufstein was such a camp. now found a site that says that was in the DISTRICT Kufstein in the community Ellmau at hamlet Föhrenwald(pine-forest). also new for me!
is a not so good translation into german but can read it well. i understand the camp was built from the NS-regime planned for workers of IG-Farben http://en.wikipedia.org/wiki/IG_Farben
then in 1945 was used for refugees from Yugoslavia!, Hungary and Baltic Sea and also some Jewish. Eisenhower made order in Oct.1945 that Föhrenwald then only be used for jewish people. the camp was one of the latest which was closed. this happened in 1957. so from your stated time your ancestors lived there it looks for me they must have been jewish?http://webcache.googleusercontent.com/search?q=cache:bH4U1jI...http://maps.google.at/maps?hl=de&bav=on.2,or.r_gc.r_pw.r...http://www.restauranttester.at/street.php?id=23310http://en.wikipedia.org/wiki/Ellmau
BUT i think the info is not correct. i found other info that it was in Föhrenwald next to Munich. there must be some missunderstood. someone maybe searched for Föhrenwald and found this small hamlet of Ellmau in district Kufstein and confused. how i said i never have known that in Ellmau was a "camp". it´s a small community in the mountains. now it would be of interest if your relatives really where anywhere in the district Kufstein, Austria or in Föhrenwald, south of Munich, Germany. maybe you can clear this up.
here the info to Föhrenwald at Wolfratshausen, south of Munich. today named WALDRAM:http://en.wikipedia.org/wiki/F%C3%B6hrenwaldhttp://maps.google.at/maps?hl=de&q=Waldram+Wolfratshause...http://www.ushmm.org/wlc/en/media_nm.php?ModuleId=10007059&a...http://www.sueddeutsche.de/muenchen/displaced-persons-lager-...http://www.ushmm.org/wlc/en/article.php?ModuleId=10007059http://dpcamps.ort.org/camps/germany/us-zone/us-zone-v/fohre...http://www.ausstellung-zwangsarbeit.org/index.php?id=293&...