I don't think there was a rule for this. I have seen some orphans with names of the adoptive parents, some with the name Camara (of the the city hall), and still others with names that do not *appear* to be related to anybody. I believe some of your ancestors were from Capelas, so look there or in Ponta Delgada where some expostos (foundlings) books are kept. If you have unusual name like Alexandre, then you could get lucky and find the date of baptism. However, there is not much information in those records unless someone came forward later and claimed they were the parents.
JR On Friday, July 15, 2016 at 4:38:23 AM UTC-4, Monica C wrote: > > Hello everyone. > > I was wondering how a child was given a Last name if their parents are > unknown? I have finally found my gg grandfather and more digging resulted > in his grand father having unknown parents. My gg grandfather was in > ultimately given my ggg grandmothers maiden name. > > Are there any orphanage records online? Would the birth/baptism records > note such status? > > Your help is always appreciated. > > Monica > > Researching Sao Miguel- capelas, candelaria, sete cidades, ginetes. -- For options, such as changing to List, Digest, Abridged, or No Mail (vacation) mode, log into your Google account and visit this group at http://groups.google.com/group/Azores. Click in the blue area on the right that says "Join this group" and it will take you to "Edit my membership." --- You received this message because you are subscribed to the Google Groups "Azores Genealogy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/azores.

