I'm curious about this coat of arms. I would love to see a copy of it. Historians in Glasgow have always been of the opinion that McHarg was derived from Graham, although my research has shown that the name did exist in the 16th Century around the time of the Reformation. Members of the McHarg or MacQuhairgh clan were given the less than pleasant task of burning catholics.
I am also on the look-out for a McHarg tartan, can you or anyone else help?