There is an immigration record for a Stanislaw Betiej (age 30), wife, Bronslawa (age28) & son, Wladyslaw (age2) arrived NYC on 8/3/1951. Threy were going to 900 Wood St., Chicago. Is this your family?
Does'nt the immigration record state the last residence and place of birth for Stanislaw? It should also have the name of the person at the Chicago address.