Nelson WOOD(S)WORTH m. Paulina BUCKNER

I would like to find the parents of Nelson WOODWORTH (sometimes spelled with the "S") who, according to the 1850 US census for Monroe Co. IN, was born abt 1823 in Ohio. They had two children, Catherine b. abt 1848 IN, and Thomas b. abt 1852 in Monroe Co. IN.
Nelson and Paulina were married February 20, 1848 in Greene Co. IN. In the 1860 census index, there is a Nelson Woodworth in Hickory Co. MO, Quincy PO.