# Cock M. Tholens
**Wikidata**: [Q74461928](https://www.wikidata.org/wiki/Q74461928)  
**Source**: https://4ort.xyz/entity/cock-m-tholens


## References

1. [Source](https://schiedam.courant.nu/issue/SP/1971-04-20/edition/0/page/2)
2. [1952](https://n2t.net/ark:/33862/collect/558634)
3. [1953](https://n2t.net/ark:/33862/collect/617943)
4. collectiesite stadsarchief Rotterdam
5. [collectiesite stadsarchief Rotterdam](http://collecties.stadsarchief.rotterdam.nl/publiek/detail.aspx?xmldescid=157010)
6. [Source](http://collecties.stadsarchief.rotterdam.nl/publiek/detail.aspx?xmldescid=157010)