Henk Breuker (A’dam 1914 – Frankrijk 2003). Master turner in the Pieter Groeneveldt pottery workshop. His work can be recognized by the carved monogram ‘HB’ next to the stamp of the studio of Pieter Groeneveldt.
Pieter Groeneveldt (Batavia 1889 – Noordwijkerhout 1982). Educated at the Rijksacademie Amsterdam. Got lessons from Gerrit de Blanken. He started in 1925 with his own workshop in Wassenaar, where he mainly produced vases. He founded in 1938 ‘Groeneveldt Aardewerkfabriek’ in Voorschoten, which existed until 1972.