Being an expert in the history of the "Primitive Baptist Church" aka "Hardshells," I have written much material on their histories and heresies. Bob Ross, a dear fellow laborer, wrote a great short piece called "History and Heresies of Hardshellism," available on the Internet at the calvinistflyswatter.blogspot.com. Also, in the early 1990s, Bob and I made three videos (originally for television), on "The Hardshell Baptist Cult," and these videos are available.
Dr. B. H. Carroll, Jr. published an excellent work titled "The Genesis of American Anti-Missionism," and a great section on "the rise of the Hardshells." It is available for purchase in book form.
There have been many books written on the Hardshell denomination over the past hundred years or more, many still available in book form.
As an expert on the history and teachings of the "Primitive" or "Old School" Baptists, I feel able to not only publicly debate the Hardshells (if any of them offer themselves), but to write about them via the Internet, and in books for publishing, and to now offer seminars on hardshellism and Hyper Calvinism.
I have had several sovereign grace ministers call me, over the past few years, to chat about hardshellism. Many Hardshells have communicated with me about the history of the "Primitive Baptists" and about some of the denomination's strange teachings.
So, I have thought it a good thing to now offer to hold seminars on the Hardshell Cult.
If there is any group that would like to sponser and to host a seminar, please contact me at firstname.lastname@example.org