Members of The Augustan Society, Inc., are assigned a unique '''Membership Number'''. It is not clear what purpose this serves.
Membership numbers are logged in the [[Membership Book]] to avoid duplication.
Numbers are in two parts, a letter and several digits. The letter is first letter of the surname. While usually obvious, prefixes such as de or von, and titles such as Füerst or Prinz are not counted. The prefix Van usually has been counted, von has not; it's not entirely clear what the logic is here.
The letter is followed by one to three digitsa number, which is assigned in sequential order, to the extent possible(but see below).
Members whose last name changes (e.g.: a woman changing name at marriage or divorce) will not be issued a new membership number.
At present, the only use for Membership Numbers is to include them on the [[Certificate of Membership]] and the [[Membership Card]].
Member numbers have also been assigned to some members of the [[Order of the Augustan Eagle]], [[Noble Company of the Rose]], and [[Hereditary Order of Armigerous Augustans]]. As best can be reconstructed, these are were all serial numbers used to establish seniority, and the practice has been discontinued.
Member numbers may have been assigned to members of some of the [[Lineage Groups]], but a definitive list of these has not been found, and the program may have been discontinued at some point. They are not assigned today.