# John Thomas Duffield

> American clergyman and professor of mathematics (1823-1901)

**Wikidata**: [Q18912167](https://www.wikidata.org/wiki/Q18912167)  
**Source**: https://4ort.xyz/entity/john-thomas-duffield


## References

1. Open Library
2. Faceted Application of Subject Terminology
3. [Find a Grave](https://www.findagrave.com/memorial/60229573/john_thomas_duffield)