Looking for adopted sister Born beteen 1949/50? Renfuew, Eganville Ontario area

If you were a girl born and adopted out, btween 1949-50 in Eganville, or Renfuew Ontario area. Do to the fact that your birthday could of been changed to the date of your adoption, Its hard to know what to look for. My half sister was born in a nursing home in Eganville Ontario? She was in a foster home for the first two months, and the foster parents last name was Davies. The people that adopted you may have had a son around 22 at the time, who worked for the police. You may have been moved to Florida? The name my mother gave you at birth was Joan. Last name was either, Buckwald or Coburn. Your mothers name is Dorothea.