Looking for Zaks
OK, I can't help you with genealogy, but here's a little remark about the danger of using English rules for Polish names :)
I was sure you meant the German name Sachs (with Polish phonetic spelling, German "s" = "z", "ch" = "k", because the spelling of many names of German origin was polonized), but I guess the name was Żak, so it's better to write "looking for Żak/Zak family", not "Zaks" :)
This way you avoid the chance that someone doesn't even read your thread, because they wouldn't recognize the name in the thread title.