James and Margaret Blaney/ OH and IA

I have found a James Blainey, born in 1804 in Ireland, his wife Margaret and children: Willian, Rachael, John, Samu'l, Telamachus, (E)ulissus and Minerva in the 1860 Henry co., Division, Tippecanoe, Iowa
Have also found James and Margaret Blany in the 1856 State census, Henry Co. Division Tippecanoe,Iowa
James and Margaret Blaney and children were in Fayette Co., Unin twp. OH 1850 census.Has anyone picked this family up in the 1870 census in Henry Co. Iowa?Note the different name spelling of Blaney.Charlotte