Just read your posting today. In the 1850 census there is Ann LEE, 44, widow of William G LEE, who had the following children with her: William, 20; Mary Ann, 18; Ruth, 16; John B, 13; Jacob A, 11; and Sarah M, 8. The John B, age 13, rules out the family for your James, but the Jacob might be significant. This family could be related to Jacob MARSH, who had John LEE, 78, with them in 1850 census. Green LEE, b. 1797, VA, had a James b. 1836...other children were Eliza, William Rebecca, Mary E., all born IN but they were in Hendricks Co for the 1850 census. I don't find any other likely James LEEs in the 1850 census - I think at one time I looked for all LEEs in IN in 1850, but don't think I have a complete list.