1870 Galva, Henry County, Illinois Census

Household
167 Wm CORKHILL 23 Male White Domestic Servant Isle of Man (living with Abdill family)

337 Robert CORKHILL Male White Coal Digger Isle of Man (living with McKain family)

458 John CORKHILL 37 Male White Farmer Isle of Man
458 Anna 34 Female White Keeping House Isle of Man
458 Willie 10 Male White At Home Illinois
458 Fannie 8 Female White -- Illinois
458 Ida 7 Female White -- Illinois
458 Eddie 3 Male White -- Illinois
458 Charles 8 mos Male White -- Illinois

460 David CORKHILL 25 Male White Farmer Isle of Man
460 Ann 34 Female White Keeping House Isle of Man
460 Anna 4 Female White At Home Isle of Man
460 Laura 1 Female White -- Illinois

466 John CORKHILL 20 Male White Farmer Isle of Man (living with Lewin family)
466 Wm CORKHILL 22 Male White Farmer Isle of Man (living with Lewin family)

613 William CORKHILL 48 Male White Carpenter Isle of Man
613 M 45 Female White Keeping house, Isle of Man
613 William Jr 25 Male White Domestic Servant Isle of Man
613 Thomas 22 Male White -- Isle of Man
613 Henry 21 Male White -- Isle of Man
613 Charles 16 Male White -- Ohio
613 Frank 9 Male White At home Illinois
613 Lydia 8 Female White -- Illinois

By 1880 it appears that all of the Corkills left Galva with the exception of John James (JJ). At this time he had moved from farming to being a coal dealer.