Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q19829912 |
| Biografisch Portaal | http://www.biografischportaal.nl/persoon/62892402 |
| RKDartists | https://rkd.nl/explore/artists/85738 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.33388 |
| Rijksmuseum Amsterdam | urn:rijksmuseum:people:RM0001.PEOPLE.28219 |
| VIAF | http://viaf.org/viaf/96460354 |
| Adamlink URI | https://adamlink.nl/person/willem-writs/2682 |
