# Piet Boonstra
**Wikidata**: [Q97859877](https://www.wikidata.org/wiki/Q97859877)  
**Source**: https://4ort.xyz/entity/piet-boonstra


## References

1. [Source](https://resolver.kb.nl/resolve?urn=ddd:011001146:mpeg21:a0230)
2. [Source](https://www.groningerarchieven.nl/over-ons/publicaties/301-boek-groningen-1948-1968)
3. [1939](https://n2t.net/ark:/33862/collect/635948)