Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q6236227 |
| Biografisch Portaal | http://www.biografischportaal.nl/persoon/49216131 |
| RKDartists | https://rkd.nl/explore/artists/33591 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.28496 |
| VIAF | http://viaf.org/viaf/18558769 |
| Adamlink URI | https://adamlink.nl/person/greenwood-john/5045 |
