Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
STALLER
As described in historical dictionaries
Patronymica Britannica (1860)
STALLER. (A-Sax. stalre). Master of the horse; constable; standard-bearer. Regni vexillifer. Ellis's Domesd. i. i)2.