The Ohio workshops may have been taught by Arnold Gasson who did study with Minor back in the day.
I was a member of a group in the early 80's run by Ron Rosenstock which drew on Minor's guided viewing techniques (Ron studied with Minor). This was a group of photographers who gathered to share work, and Ron told me a couple years ago he is still running the group, with some of the same members!
Minor and students also worked on a book, an unpublished manuscript, of his image making and viewing meditative 'techniques'. Two volumes, probably 3-400 pages! Probably sitting in the White archives, I believe at Princeton. V. unlikely it'll ever see publication, but a very interesting read.