Sandy, I think your Sarah Dean is the daughter of Henry Dean and Elizabeth Duff. I have somewhat different dates than what you listed. I have Sarah Jane Dean b. 5 Jan 1848, d. 6 Oct 1912. Married (22 Feb 1866 -- just had an anniversary!) to Robert Mitchell b. 11 Apr 1840, d. 12 March 1917. Mine could certainly be wrong, but it sounds like the same people. Let's compare! Lucy