I've been through countless historical figures, but the trouble is one bearded man looks much like another. I assume there's no markings to the underside of the glass figure? I did think that an evangelical figure would have had a bible depicted somewhere? Perhaps the V&A Museum might accept a photograph of your gentleman and give some advice? Just a thought.

Maybe someone will be able to ID him for you here, I think he's great and I wouldn't sell him either.

Postscript: Leni, strangely I was wondering about James Garfield earlier, he was born in a log cabin...wondering about the tree stump...