# Leonard I. Holder

> Ph.D. Purdue University 1955

**Wikidata**: [Q102168107](https://www.wikidata.org/wiki/Q102168107)  
**Source**: https://4ort.xyz/entity/leonard-i-holder


## References

1. [The Gettysburg Times. 2012](https://www.gettysburgtimes.com/obituaries/article_7ff261a1-33a5-56d6-a597-9858ec1b6779.html)
2. Mathematics Genealogy Project
3. Virtual International Authority File
4. CiNii Research