I don't see a connection between my Briggs and yours, at least not yet.The biography I have is the one I posted earlier, but it doesn't fit my family.I have a 1907 History of Pottawattamie Co. which states on Page 197 that E.W. BRIGGS organized the first religious body in Grove Twp., Pottawattamie Co., by establishing a Latter Day Saints Church.The church members first met at the homes of members, but in 1874 they erected a modest church building.I also own an 1885 Atlas of Pottawattamie County Iowa which lists the following Briggs names:C.F. BRIGGS, E.C. BRIGGS, E.S. BRIGGS, G.W. BRIGGS, J. BRIGGS, MRS. A. BRIGGS, MRS J.A. BRIGGS, R.W. BRIGGS, W.F. BRIGGS, and WM. T. BRIGGS.Their farms appear on the atlas.I hope this is helpful to you.