Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q18608172 |
| Biografisch Portaal | http://www.biografischportaal.nl/persoon/82910112 |
| RKDartists | https://rkd.nl/explore/artists/78790 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.24000 |
| Rijksmuseum Amsterdam | urn:rijksmuseum:people:RM0001.PEOPLE.2028 |
| VIAF | http://viaf.org/viaf/95831595 |
| Adamlink URI | https://adamlink.nl/person/uppink-willem/3705 |
