# John Langdon Sullivan

> American physician (1827–1900)

**Wikidata**: [Q98400044](https://www.wikidata.org/wiki/Q98400044)  
**Source**: https://4ort.xyz/entity/john-langdon-sullivan-q98400044


## References

1. [Men of Progress: One Thousand Biographical Sketches and Portraits of Leaders in Business and Professional Life in the Commonwealth of Massachusetts](https://archive.org/details/menofprogressone00her/page/606)
2. Find a Grave
3. Geni.com
4. [Men of Progress: One Thousand Biographical Sketches and Portraits of Leaders in Business and Professional Life in the Commonwealth of Massachusetts](https://archive.org/details/menofprogressone00her/page/606/mode/2up)