Relatives: Linda Diane Platt, Born Miami, Fl. 1951

Looking for relatives of (Linda Diane Platt) Born Miami, Florida in 1951 to Elizabeth Viola (maiden name Johnston) and Wilmot Platt, Jr. They divorced December 28, 1951. I was Adopted by Donald A. Harlen in 1957. I found Wilmot Platt, Sr. in social security records as deceased. I believe this was my grandfather. Looking for Wilmot Platt, Jr. who put up Neon signs for a living. Went by "Bill" and last know address was 240 NW 59th Terrace in Miami, Florida.

I am Linda and would like to know my blood relation and let him know about his grandchildren and great grandchildren and find out if I have other relatives I don't know about. Any information would be greatly appreciated.