Update! Do you need three hours of writing time at an inspirational spot? The Mark Twain House & Museum in Hartford, CT is offering off hours writing time. I would love to do this!
3 hours of writing time at Mark Twain's house!
The following link is to the Routledge Encyclopedia of Mark Twain, edited by J.R. LeMaster and James D. Wilson, 1993, specifically, the pages on his genealogy. Routledge Genealogy of Mark Twain
And to the following Genealogy reference from the early 1900's. Genealogy: A Journal of American Ancestry