Scottish equivalent of "Smith"

[billmcc]

I have had the thought of just sticking with the Marine Corps Tartan and moving on. That might just be the best thing to do at this point (I'm not giving up, though).

The leatherneck tartan is nice. Wear it proudly. There are other American tartans, like the American Heritage tartan (see here: http://www.usakilts.com/store/registered_tartans.php) that may have some appeal to you.