Okay, yes I'm aware of that branch of the family. I met a few of them at a reunion west of Leduc I think in 1984, and again at the Bray reunion in the Cypress Hills in 1992.
Have you done much work on the family? I've worked mostly with Pat McCloy's information on the early generations of the family. My current project is re-writing my Master's thesis of John McKay's years in Brandon House [1790 - 1810] into a popular history.
Why don't you email me directly and we can exchange addresses, etc.