Undifferentiated personal names
- Sal Hamerman
- Rex Hatfield
Updated 2019
Undifferentiated name authority records
- RDA 8.6
- RDA 8.11
- RDA 9.19.1.1
- DCM Z1 008/32
What is it?
When the core elements recorded are insufficient to differentiate between two or more persons with the same name, and they’re all listed under the same record.
How to tell when you are dealing with an undifferentiated NAR
Undifferentiated NARs contain:
008/32 coded “b”:
667 note:
Pairs of 670 fields used to group information about each individual covered by the NAR:
What to do?
Create a new name authority record in RDA, with distinguishing information. Transfer information pertaining to that person (their 670 fields) from the undifferentiated record and edit as necessary.
Use period of activity in $d, or profession, occupation, or other designation in $c to make each entity unique.
100 ## $a Thomson, Andrew 100 ## $a Thomson, Andrew, $d active1755 100 ## $a Thomson, Andrew $c (Children’s book illustrator) 100 ## $a Thomson, Andrew $c (Pastor) 100 ## $a Thomson, Andrew $c (Writer on Camping) |
Add a 667 note to the new NAR:
| 667 ## $a Formerly on undifferentiated name record: [LCCN of undifferentiated name record] |
If more than one identity remains in the undifferentiated NAR:
If there is not sufficient information to create a new NAR for each name, leave the record coded AACR2.
If only one identity remains in the undifferentiated NAR:
Add a 667 field to the undifferentiated NAR:
| 667 ## $a Last identity on undifferentiated record; reported for deletion on [date]. |
Report undifferentiated NAR to Authorities Committee chairs: Yang Wang (yangwang@princeton.edu)
Example:
Original, undifferentiated record
Updated record, marked for deletion
New, disambiguated record
