I think they are 2 different people?
After all, Quayle isn't exactly uncommon on the Isle of Man!

Or maybe he was enumerated twice?
Henry #1
Fisherman aboard Wanderer of Peel, #11, Peel Fishing Fleet
RG13, 5308, 146, 2
Henry #2
Walpole Road, Peel
Quayle, Henry Head M 23 Mariner Seas b Peel
Quayle, Mary J Wife F 23 b Peel