I just looked at my grandfather's PA BC (1914)-- the book copy, not just the copy you'd get if you requested one from vital statistics and there isn't a place that asks that. I don't know if that was added later or not. I don't have the book copy of my dad's (1953)-- just the regular format to check what the form was like by the 50's. The 1914 form does have a place for signature of physician, midwife, or unattended (where father would fill in info). It also asks for info such as number in order of birth, legitimate, twin/triplet etc but doesn't ask specifically about home/hospital (unless there were just different forms depending on whether it was a home or hospital birth). Also, there was an error on my grandfather's BC that I knew he had tried to correct in the 60's because I found his notes saying so but when I ordered his BC I received the uncorrected version. Vital statistics had no record of the correction for some reason, but they said any time corrections were made to a birth certificate (and again, I don't know what year this started/stopped), the original one in their book would not be corrected or written over, but a paper with the necessary corrections would be glued to the back of it in their book. I don't know if they would also put any name change due to adoption in the book that way as well?