# George Kroonder

> Dutch Esperantist, framer, workers' organizer, and resistance fighter (1912–1993)

**Wikidata**: [Q85103393](https://www.wikidata.org/wiki/Q85103393)  
**Source**: https://4ort.xyz/entity/george-kroonder


## References

1. [Source](https://archief.amsterdam/indexen/deeds/98533457-7a98-56a3-e053-b784100ade19?person=98533457-7a99-56a3-e053-b784100ade19)
2. Etty: de nagelaten geschriften van Etty Hillesum 1941-1943
3. [Source](https://archief.amsterdam/indexen/deeds/98533401-d6cc-56a3-e053-b784100ade19?person=98533401-d6cd-56a3-e053-b784100ade19)
4. Encyclopedia of Esperanto
5. [Source](https://hdl.handle.net/21.12123/11994)
6. Laborista Esperantisto
7. Sennaciulo
8. Etty: The Letters and Diaries of Etty Hillesum 1941-1943
9. [Source](https://www.stedelijk.nl/nl/collectie/94210-sem-presser-fotografisch-abc-boek)