ISO baby boy born in Seattle, WA 1/18/1980

I was adopted in Seattle Washington. Was born Jan 18 1980 in King County hospital. Recently told by my adopted Father that my original last name was Winslow. Don't know much else but I have been searching for more for years. My name is Edwin Branshaw. First name was never changed. I can only dare to hope that maybe you might have the answers I have been searching for. Feel free to email me at ewbranshaw@gmail.com. Please