http://pilot.familysearch.org/recordsearch/start.html#givenN...

Anton Janda and family is found in the 1900 census.

also of interest, my grandmother Besse Belle Bunda (b. 1902) who married George W. Lerch (b. 1900, both of Bohemian parentage, and living in chicago/Berwyn, had someone they were acquainted with named Joseph J. Janda...I'm still trying to find out if he is a family member.
I have found many Janda obituaries from the Chicago area in that time perios, let me know if you are looking for one in particular.