Interesting find, Paul.
I believe John Jacob Corkish was md Sarah Ann Cain(e)
If correct, he was s/o Henry Corkish & Catherine Keig of Rushen
She was d/o William Cain(e) & Jane Skillicorn of Douglas

1881 Rushen
, 3, 24, 146, CORKISH, Henry, BallaNeale, Head, Widower, 55, Farm Labourer, Rushen
, 3, 24, 146, CORKISH, Jacob, BallaNeale, Son, , 13, Scholar, Rushen
, 3, 24, 146, CORKISH, Catherine Jane, BallaNeale, Daughter, , 10, Scholar, Rushen
, 3, 24, 146, CORKISH, Albert, BallaNeale, Son, , 6, , Rushen

1881 Douglas
District Number HH Number Last Name First Name Place Relation Condition Age Occupation Born Census for
2 197 CAIN William 9, Shaws Brow H M 33 Point Man on IOM Railway Douglas Douglas
2 197 CAIN Jane """" W M 43 Lonan Douglas
2 197 CAIN Sarah """" D 11 Scholar Douglas Douglas
2 197 CAIN William """" S 9 """" Douglas
2 197 CAIN Thomas """" S 4 """" Douglas
2 197 CAIN John """" S 2 """" Douglas
2 197 CAIN James """" Brother U 23 Storekeeper In a Factory """" Douglas

Donna