Re: Jefferson/Marion County IL Garrens

I see that my GGGM/Sarah Elizabeth Garren b.10- -1850 m.Nathaniel D. Miller b.5- -1840 is listed as yr GGGF. Have no info any further back than this. Could you help me find their parents and any info? My GGM/thier daughter: Chistina LuArbelle Miller died after my GM was born, no info past them. Appreciate any assistance availble.I believe they lived in Iowa, because my GM was born and raised there, but I'm not sure where they came from.Betty Mae Martin