I found a few things you may be interested in.I have I have a copy of the 1840,1850, and 1860 Madison Co. census for Solomon Nelson. I got you copies of the 1824-1840 Madison Co deed Records listing 2 Solomons, copies of the Nelsons in the Nelson/Richland Township Cementery, and a copy of the Nelson marriages between 1850 to 1920. All of this may give you more questions than answers. Give me your snail mail address and I will send them to you.
GOOD HUNTING
David