# Jan Marten van 't Haaff
**Wikidata**: [Q109938778](https://www.wikidata.org/wiki/Q109938778)  
**Source**: https://4ort.xyz/entity/jan-marten-van-t-haaff


## References

1. [Source](https://caert-thresoor.nl/wp-content/uploads/sites/4/CT07-1.pdf)
2. [Source](https://www.openarch.nl/hga:5BE0FD78-7A71-4F77-A18E-2932BE3F66CA)
3. Virtual International Authority File
4. [Source](https://explokart.eu/wp-content/uploads/sites/3/Repertorium_van_Nederlandse_kaartmakers.pdf)
5. [Source](https://geheugen.delpher.nl/nl/geheugen/pages/collectie/Album+amicorum+A.L.G.+Bosboom-Toussaint,+1882)
6. [Source](https://www.dbnl.org/tekst/_vad003184801_01/_vad003184801_01_0015.php)
7. CollectieGelderland