# Frank and John Craighead

> American naturalist and conversationist duo, twin brothers

**Wikidata**: [Q21005461](https://www.wikidata.org/wiki/Q21005461)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Frank_and_John_Craighead)  
**Source**: https://4ort.xyz/entity/frank-and-john-craighead


## References

1. [Source](http://www.craigheadresearch.org/frank-craighead-legacy.html)
2. [Source](https://www.nps.gov/parkhistory/online_books/sellars/chap6g.htm)