Hi Leon, Thank you. So far I haven't found a Polly Mace on the 1840 MO Census, but I'll keep trying. My ancestor John Mace, Polly's son, was in Miller CO, MO on the 1840 Census so possibly she did go to Missouri and then back to Illinois. Which Mace line are you related to? There was another set of Maces in Texas, Dent, and Phelps area of MO that came from TN. I suspect they are related to my Maces, but not sure how. Some of my line also ended up in those areas and some still live there today!