"Hitchcock
Olga" doesn't seem to be from a birth announcement, but from a commencement program. (At least, someone's posting about names from a commencement program is the only reference I can find through Google to "Hitchcock
Olga".) Therefore it seems quite possible to me that this actually isn't the true order of the given name, but a case where whoever printed up the commencement program made an error and switched the first name with either the last name or the middle name. I have seen such errors on commencement programs myself.