# Johannes Frederik de Graaff

> Royal Dutch East Indies Army personnel

**Wikidata**: [Q135914322](https://www.wikidata.org/wiki/Q135914322)  
**Source**: https://4ort.xyz/entity/johannes-frederik-de-graaff


## References

1. [Source](http://proxy.handle.net/10648/7f792edf-f2de-4ebe-a866-a16a5948e639)