I (supposedly) have ancestral ties to the House of Boyd (maternal grandfather) and Clan McIntyre (paternal grandmother) but my paternal surname is of Irish descent. It doesn't much matter to me because I don't really care for the Boyd or McIntyre tartans anyway. Neither do I care for the Edzell (U.S. Navy) or any of the other "legitimate" connections I supposedly have. What kilts do I have? Scottish National, (I like the green, red white and blue) County Tyrone (Irish origin of my surname and its a great looking maroon tartan) and Black Watch weathered (I like the subdued earthy tones). Given some people's curiosity about tartans, I think it is good idea to know what tartan your kilt is and be ready with an explanation of why you are wearing it -- even if it is because "I like it" or even "this is the one I could afford." This whole thing can get way out of hand. Wear what you like, are comfortable in, and have a good story to tell if anyone asks (some will, most won't). Most of all -- have fun; life's too short to take it all that seriously!