Len Augsburger wrote with information about the John Reich Journal on the Newman Numismatic Portal:
The John Reich Journal is now live on the Newman Portal at: https://nnp.wustl.edu/library/publisherdetail/518721
You can do searches within the JR Journal by using the advanced search page:
Enter “John Reich Journal” in the title field, and the search term in the search box at the bottom. A search on “1802 JR-1”, for example, finds five matches within JRJ. One could similarly search for Overton or LM varieties.