The 1910 census of Joliet, Illinois has a John Janisek residing with Frank Rozga. John is listed as a nephew, aged 22. Is it possible that Jasinek is a variation of Janacek? I have also seen the name Jasinski in Joliet. I'm trying to find out if John Jasinek was the son of my great-great Aunt Rose. I have NO information on Rose. Any information would be appreciated.