On further look there must be one more generation between Margaret McBooy who married Daniel Caine and Phinlo McBooy. Phinlo had a daughter Margaret and I jumped to the wrong conclusion without checking dates. I apologize.
When searching the McBooy line also try Booy as they seem to be interchangeable.
The Quiggin line that descends from Phinlo has been added to my web site http://junior.apk.net/~ctd/
but have not found the Caine connection!