Well, we have our first goal, Malka Mysels. Randy Schoenberg connected Paul Veit Mautner at the WFT!
Perhaps there is another goal, because I found a solitary profile of Hans Arnstein and discovered that he was João Arno here in Brazil: Hans Arnstein, João Arno
Jorge Wilheim was a renowned Brazilian architect and urbanist. Almost all his immediate family (parents, uncles and grandparents) and himself included are Jews (his father of Hungarian origin) born in Trieste who came to Brazil in 1940 refuge from the war. Jorge Wilheim died a year ago. His tree:
http://www.geni.com/family-tree/index/3940346919640042038
But their links with European families are still restricted to Brentani family (Breitner) of his uncle in law, although I have worked bringing immigration cards, locations and dates for the profiles.
Who of you will accept the challenge of linking Wilheim, Goldberger and Löwinger surnames to their ancestors? Malka Mysels? Randy Schoenberg? Thanks! :-)