Maxwell Nesbitt and Elizabeth Nesbitt (who married Uriah Litten) are siblings. I have a copy of the Bible records of their father and mother, William Nesbitt and Jane Dobbins Nesbitt. According to those bible records Maxwell M Nesbitt was born 23 July, 1798 & Elizabeth A Nesbitt was born 7 June, 1804.
William O Nesbitt (son of Maxwell Nesbitt and Margaret A Litten Nesbitt) was probably the oldest grandchild of William and Jane Dobbins Nesbitt. He is listed in his grandfathers bible as being born 2 Nov, 1825. William O Nesbitt was probably born in North Carolina and most of the census records indicate that. One record is very interesting though. In the 1880 census of Gibson R Nesbitt (son of William O Nesbitt) of DeSoto Co, Mississippi he shows that his father was born in Indiana. William O Nesbitt was killed in a Railroad Accident. The wreck occured between Huntsville & Forestville, NC. The train was enroute to Raleigh, NC. (Extracted from the Wed, 5 Nov, 1862 edition of the "Weekly Standard" newspaper of Raleigh, NC.)