Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
STRAITON
As described in historical dictionaries
Patronymica Britannica (1860)
STRAITON.* " There was an old family of this name, designed of that Ilk, from the lauds of Straitou (in Ayrshire) of which King David I. gave them a charter." Nisbet.