My maiden name is Walker. Here's what I know about it:
Definition: Occupational surname for a fuller, or person who walked on damp raw cloth in order to thicken it. Derived from the Middle English "walkcere," meaning "a fuller of cloth," and derived from the Old English "wealcan," to walk or tread.
Surname Origin: English, Scottish
Alternate Surname Spellings: WALLKER, WALKER