The tannery in Frank only produced shoe sole leather. I never heard that they tanned anything but cow hides for shoe soles. I grew up there and my Grandpa worked his entire life in that tannery, my dad spent a few years there as well. Got to love the smell of a tannery. I have an article on the tannery, if anyone is interested I'll try to get in online and post it up for you. The tannery in Frank, Howe Leather Co, actually went out of business a few (maybe more) years back and I believe was a part of Interstate tannery....
Here is a quick internet hit on the Howe tannery.... The man standing on the left was my grand-dad.
http://www.wvculture.org/goldenseal/fall11/Tannery.html