Amna

First name site: www.skarbczyk.com
few sites for research:
http://maxpages.com/poland
www.rootsweb.com/~polwgw/index.html
Do you have his arrival manifest? If yes, it should have his place of birth.
Distribution of a surname in Poland:
http://www.moikrewni.pl/mapa/kompletny/nalepa.html