Luther Cressman
![Cressman at [[Fort Rock Cave]], [[Oregon]], 1966](https://upload.wikimedia.org/wikipedia/commons/d/dd/Luther_Cressman.png)
1
Published: 1960
Superior document: Transactions of the American Philosophical Society N.S.,50,10
2
Published: 1956
Superior document: Transactions of the American Philosophical Society N.S.,46,4