Surname

So here's something cool. Whilest at the Highland Games on Saturday, we came across a booth to look up Coat of Arms and such for surnames. I did a quick look to see if mine was in the book and then left. Upon a trip to my mom's place, I mentioned this to her with the reply of, "Oh yeah, you've got a huge Scottish background on your name", where my "name" is actually my grandpa's first name (which in turn is his great-grandfather's surname, very fucked up yes but it boils down in the end). Apparently Muir (the surname in question) comes directly from Scottland (this is 4 generations away from me and has been supplanted by Hahn, a very distinctly German name) and with a little research I came upon these excellent links:

http://www.houseofnames.com/coatofarms_details.asp?sId=&s=Muir
http://www.houseofnames.com/coatofarms_details.asp?sId=&s=Hahn
http://www.houseofnames.com/coatofarms_details.asp?sId=&s=Lillie

I don't believe the Coat of Arms for any of those are correct.

http://www.behindthename.com/php/search.php?terms=muir&nmd=n&gender=both&operator=or

So apparently I've learned some things I didn't know before about myself and my relation to Scottland. w00t.