Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q2780829 |
| RKDartists | https://rkd.nl/explore/artists/45733 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.29639 |
| VIAF | http://viaf.org/viaf/271005566 |
| Adamlink URI | https://adamlink.nl/person/koolen-harry/9472 |
