Hi I'm new here. Just wanted to offer my two cents.

The clan that my father was a descendant of is MacArthur, but he was adopted by another family when he was an infant, back in 1939. (Dad passed away 3 years ago.) Since it was neither the fault of myself or my father that he was put up for adoption, but he was a blood descendant of Clan Arthur, I say I have every right to wear the tartan and the badge. These are, after all, symbols of my biological ancestry.

Beyond that, my great-grandmother's maiden name was Hay. There is a Hay tartan as well, and even though it was her son who adopted my father, I think I'm entitled to wear the Hay tartan as well - ties of fosterage or adoption, so far as I can tell, always were considered just as valid as blood ties.

Just sayin'