6/1950 Need help w/ St Vincent's Home for Unwed Mothers in PA

My name is Stephanie Hipple and I am searching for my birth mother Mary Elizabeth Hipple who went through St. Vincent's Home For Unwed Mothers in 1953. Do you know if the mothers had to be under the age of 21? The answer to this question can help me narrow down the age of my birth mother? Thank you. stephhipple@hotmail.com