Jackson's PhD should be available at this link: https://scholar.colorado.edu/concern/...

Jackson's Old Norse (and sometimes poetry) channel:    / @jacksoncrawford  

Luke's 'Word Safari' channel:    / @wordsafari4611  

One of a few collaborations between them:    • Magic in the Ancient World (with Dr. ...  

Enormous thanks to him for coming on and sharing his knowledge.