Sounds like you need to delve into your family history a little deeper...Scots, Irish, Welsh...all prolific and liable to turn up on a lot of family trees in unexpected places.

If truely no, then there are many commerative tartans - were you in the service? Does your university, state, city, company you work for have a tartan? There are many fashion tartans - tartans developed for sale rather than as a clan affiliation. There are bazillions of solid color kilts too.

But you can also wear most any tartan you wish, if, as pointed out its worn with pride and respect.

Ron