# Theo A. Johnsen

> MAerican businessman (1857–1911)

**Wikidata**: [Q7781417](https://www.wikidata.org/wiki/Q7781417)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Theo_A._Johnsen)  
**Source**: https://4ort.xyz/entity/theo-a-johnsen


## References

1. Faceted Application of Subject Terminology
2. SNAC