# Jean van Heijenoort

> Historian of mathematical logic and personal secretary to Leon Trotsky (1912–1986)

**Wikidata**: [Q449711](https://www.wikidata.org/wiki/Q449711)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Jean_van_Heijenoort)  
**Source**: https://4ort.xyz/entity/jean-van-heijenoort


## References

1. [birth certificate](https://ressources.archives.oise.fr/ark:/44803/g96113104739e4e4344c2d3216d568719/62e00ef381509e90c09f44195c72a50e/80/ZnJhZDA2MF8zZTE3NV8xMDFfMDgwLmpwZw==)
2. Integrated Authority File
3. BnF authorities
4. Czech National Authority Database
5. Mathematics Genealogy Project
6. International Standard Name Identifier
7. Virtual International Authority File
8. CiNii Research
9. SNAC
10. Library of Congress Authorities
11. Freebase Data Dumps. 2013
12. LIBRIS. 2012
13. National Library of Israel Names and Subjects Authority File
14. Catalogo of the National Library of India