# Clarence Errol Ferree

> American psychologist and ophthalmologist (1877-1942)

**Wikidata**: [Q130316374](https://www.wikidata.org/wiki/Q130316374)  
**Source**: https://4ort.xyz/entity/clarence-errol-ferree


## References

1. [American Journal of Psychology. 1943](https://www.jstor.org/stable/1417912)
2. [Smithsonian Institution Archives](https://siarchives.si.edu/collections/siris_arc_290969)
3. [Prabook](https://prabook.com/web/clarence_errol.ferree/1106717)