Genealogy / Kocielko surname - I would appreciate any info [44]

@Koach
My grandfather was Eddy Kocielko and owned the Bar with his dad Bazil. I am still in the Joliet area. I am trying to piece together my family ancestry also. My grandfather Edward (Eddy) Kocielko died young and my mom and Aunt dont' know who Bazil's grandparents are. In my recent research I see another Basil Kocielko that my be my great grandfather Bazil's cousin? Trying to figure out who our Bazil's parents are. Thank for any help. My name is Ami