looking for brothers and sisters

I was adopted.My birth name was Blay.I am the biological child of Charles S. Blay.I think he died in Florida in the early to mid 1980s.Supposedly, he remarried after my birth mother.Possibly somewhere in Ohio?I have heard that I may have several siblings from this marriage.They would have been born after 1950.If you have any information please email me at above address.