Trying to be sure of Grampa's tartan

[raibeart_dubh]

Note the red square completely encloses the smaller white square on both pictures. The Green waistband does infer it's a Seaforth Higlanders Kilt but that doesn't make it any less a Mackenzie variant so it is a Mackenzie Tartan.

I didn't even notice that! That definitely rules out my Campbell of Cawdor theory. I'm sold on it being Seaforth Highlanders for sure now.