I don't have Rose or Margrit in my database but I checked with one of the Bozzay cousins and she had relatives in Caldwell NJ (ours were in Perth Amboy). She sent me this note: Janos Vaczi was married to Julianna Bozzay on Jan. 21, 1890. They had a stillborn child on June 5, 1890. Janos went to Caldwell, NJ, US on May 23, 1901.
Jan. 21, 1890 Janos Vaczi, 24, born 1866 son of Janos Vaczi and Julianna Varga groom
Julianna Bozzay, 18, born 1872 daughter Mihaly Bozzay, Zauzsanna Czigany bride
married in Caldwell, NJ
These may or maynot be relations to you
I think they may have been from FelPec, Gyor in Hungary.
There are some other Bozzay families I have been in contact with in the past. I will see if any of the emails still work and see if any of them know about Rose or Margrit.