William H. Snelson died in 1892.I am sure you meant something other than your husband's 3rd grand-nephew - I myself am an expert at typing errors.(vvvverryy gooood at it, mattttter of facttttt).
W.H. Snelson is the son of John Snelson (who died in 1998 in Palo Pinto County, Texas), son of Samuel Snelson (originally born in Rhea County, Tennessee and moved to Missouri prior to 1840), son of James Snelson of Rhea County, Tennessee.And somewhere I have the names of the those ancestors also.
Not much is to be found on John Snelson or his father Samuel Snelson that I have been able to document.They kind of got skipped over in several significant census records.If this sounds like your group of people please contact me again at firstname.lastname@example.orgThank you for your response.