| September 23, 2022 | Edited by Tom Morris | merge authors |
| June 15, 2021 | Edited by Stew | Remove DUP info. |
| September 30, 2020 | Edited by MARC Bot | add ISNI |
| March 31, 2017 | Edited by MARC Bot | add VIAF and wikidata ID |
| September 15, 2008 | Edited by ImportBot | Found a matching record from University of Toronto . |