Searching through various immigration documents, I have found Tadlocks that have come from just about everywhere ... to include one from Russia of all places.
My wife's line of Tadlocks are traced back to original emmigrant Edward Tatlocke in 1702, from England.He was born in Kirkby by Saint Melling, Lancashire, England 6 Nov 1681 (parents William Tatlocke of Ormskirk, England and Jane Spencer.
The name changed in America shortly thereafter, with variations of Tatlock, Tadlock, and Tedlock.
The family shield I describe is of a Tatlock (not Tadlock, which has two other shields/crests ascribed to them) that was also of that region in England.
Truth be know, according to the "rules of English Heraldry" the crest (arms, shield, and so on) are only permitted to the actual person awarded same and to his descendants.Now-a-days, the importance of all that is kinda vague and we find people everywhere basically searching for a crest/arms/shield for their family name.
The trick is to find the right one ... or one that is closest to being "right".
I am vaguely familiar with the Clan Ross, but not all its septs.I do some work when I can in Scottish Clans as I am distantly of the Clan Buchanan.