Val! Hello! Good to meet you again!
Yes, I plan to man an assault on tracking down the Stewarts this weekend if possible by trawling through IGI's and census details. Then onto potential passenger lists and emmigration. They seem like quite a slippery pair unfortuantely. I have managed to locate Williams' grandson (Robert Downie) in Gargunnock graveyard. The Farm, Knock O' Ronald was in Downie hands for a few decades and one of the crags with a waterfall at Gargunnock is called "Downies' Loup" where "a Downie" supposedly showed his horse riding prowess by leaping it twice before dying on the third attempt - although probably the smaller waterfall a bit further up the hill according to a local historian there.
So i know they have a heavy presence in the Gargunnock area and prior to that I believe William's son, also called Robert, ran Hillhead Farm.
I'll let you know if I find anything over the weekend but hadn't tried graveyards and headstones before.
