On 1881 British Census three Henry Corkills shown in age range given.Two are Fishermen age 20 on their vessels;the other a Henry Ernest age 16,Bankers Clerk living with parents Thomas(a Bank Agent) and Rachel(Age 55 and 56) and sister Catherine Elizabeth Age 22 at Bank House,Maughold I of Man.
An Isabella A Skillicorn age 13 was living with parents William(a Farmer) and Isabella(Age 52 and 53)and sister Mary Jane age 7.
Any of this seem relevant?