Joseph Kupan sent me your query. I am guessing your grandfather came from Pusztavam, Hungary (part of the Austro-Hungarian Empire in 1902.) Pusztavamwas where my grandfather was born, also in 1902. I have Friedmann ancestors, Roman Catholics in Pusztavam, back in the 18th century. Johann Friedmann, and his daughter, Maria Anna.The Church of Latter Day Saints has microfilms of the RC church records from Pusztavam. They might provide you with info that is helpful.
A lot of folks from Pusztavam settled in Garfield and Passaic, N.J., and worked in the woolen mills there. Maybe that is where your grandfather went, although Piscataway, near New Brunswick, is possible, too.