Are you sure Theresa stayed in Europe? I found a Theresia Novak in a Canada Passenger List on a ship that landed in New Brunswick. New Brunswick was often used as "transfer region", from which the journey was continued. Theresia was transcribed as Theresio, but female in the index. "Canada Passenger Lists, 1881-1922," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:2HG5-Z2J : 11 March 2018), Teresio Novak, Apr 1908; citing Immigration, Saint John, New Brunswick, Canada, T-4820, Library and Archives Canada, Ottawa, Ontario.
Another thing I would like to mention: I suspect that her LNAB wasn't KuscK, but KuscH. The combination "sch" is the usual combination in German for the "sh" loud. The combination "sck" doesn't exist in German.