| September 30, 2020 | Edited by MARC Bot | add ISNI |
| March 31, 2017 | Edited by MARC Bot | add VIAF and wikidata ID |
| May 10, 2010 | Edited by Open Library Bot | Linked existing photos to the author. |
| April 13, 2010 | Edited by 205.227.88.253 | Edited without comment. |
| November 1, 2008 | Created by ImportBot | Imported from bcl_marc MARC record. |