I am thinking you must be descended from Maurice Leahy and Marie, Nee Pooler - I do hope so. He gave my Mum (and subsequently) my Dad a leg up in their early married life - in fact my Dad proposed to my Mum on Port Meadow Oxford, I think while holidaying with the Leahys.
I have lots of detail on this family including all the rest of the way from 1901. I probably don't have much more than you on the Captain legend.
email me direct - firstname.lastname@example.org
and we'll continue.