Jenny, where are you?

I hope I have the right first name. I am looking for a female named Jenny who was born and put up for adoption around the years of 1971 or 1972 in Wisconsin area, possibly the greater Milwaukee area. Your parents names are Betty and Robert. I am your sister... and I want so badly to meet you. I just found out about you and I think meeting you will put together the missing pieces in the relationship I have with our mom. Please respond, even if its hard for you.