ISO bio-sibling, born in the Chicago area in early 70's

Female sibling ISO bio-sibling who was born in the Chicago area in early the to mid 70's. (73, we think.)The birth mother is of N. European descent, was about 23-25 yrs old at the time, last name Hodson. The father, we believe, was of Italian descent. He may not be listed on the birth certificate. The adoption was private and arranged by a doctor Klein (we think). Gottlieb memorial hospital in Melrose Park, IL. may have been the place of birth. The child could be male or female, we don't know."Supposedly" the adopted family was Jewish and from the east coast.I have had a DNA test done, if we are relatedit will tell us, as long as you have taken the test too.Contact me with any questions.