| September 30, 2020 | Edited by MARC Bot | add ISNI |
| May 18, 2020 | Edited by KarlKemp | added DOB, date of death, bio, Wikipedia link |
| March 31, 2017 | Edited by MARC Bot | add VIAF and wikidata ID |
| September 28, 2008 | Created by ImportBot | Imported from Oregon Libraries MARC record. |