Some of the association of "Rob Roy" McGregor & Highland attire may be due (and this is only a theory, mind you) to Sir Walter Scott. It was Scott who introduced the legend of Rob Roy to the world through his novel, "Rob Roy" (on which the 1995 movie was loosely based),and he also wrote a history of the famous outlaw as well (I found a copy whilst browsing at Barnes & Noble). Given Sir Walter's influence on the 1822 state visit of George VI to Scotland, when the kilt & tartan "mania" began, I wonder if this might have something to do with the association, especially since Rob Roy has become the Scottish version of Robin Hood.

A great web site about the legends and historical facts of Robert McGregor may be found here:

http://www.isidore-of-seville.com/robroy/index.html

Last friday the History Channel ran a very interesting documentary on McGregor -- one of their "Histories Mysteries" series. There was also one of these done on William Wallace. I should order a copy for the library! ;)

Again, it's just a theory.

Cheers,

Todd