Re: Duty's- Ill,Mo,Ia

Thomas Edward DUTY, son of John & Anna GRANT DUTY who lived 1850 in Posey Co. Ind.John DUTY, born 23 Dec 1799 NC, son of William DUTY 1760/1770 who last appeared on 1830 census for Posey Co Ind.John DUTY & family lived in Franklin Co Ill by 1860.That census records another child for Thomas and Sarah SPENCER DUTY ...James M.DUTY b.1856 Ill.
William DUTY of Posey, son of William DUTY who died 1815 Chatham Co NC.
Where did Thomas's line live in IOWA?I would like to learn more!