I don't have any John P Corkills in my line. I do have information on a John J Cowley b 1873 Isle of Man died 18 Oct 1938 buried Nortonville, Jefferson Co, KS. He married 23 Feb 1897 Isle of Man to Esther TEARE daughter of Robert TEARE and Elizabeth CORMODE. I have a copy of Esther's obit which was saved by the family. I don't know how Esther is related to my TEAREs. I also have an obit for John and Esther's son James W COWLEY born 28 Oct 1902 in Galva ILL. He died 21 Dec 1988 and is buried in Nortonville Cemetery. Do you want copies of these obits? Is this your line?
My Corkills came through Galva but setteled in Nortonville KS. JAN