Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q15123103 |
| Biografisch Portaal | http://www.biografischportaal.nl/persoon/65112629 |
| RKDartists | https://rkd.nl/explore/artists/90542 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.29470 |
| VIAF | http://viaf.org/viaf/290113729 |
| Adamlink URI | https://adamlink.nl/person/keyser-willem-de/3448 |
