# Walter D'Arcy Ryan

> American lighting engineer and inventor

**Wikidata**: [Q2546908](https://www.wikidata.org/wiki/Q2546908)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Walter_D'Arcy_Ryan)  
**Source**: https://4ort.xyz/entity/walter-d-arcy-ryan


## References

1. Virtual International Authority File