The Collaborative International Dictionary of English v.0.48:

Hobbler \Hob"bler\, n.
   One who hobbles.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Hobbler \Hob"bler\, n. [OE. also hobeler, OF. hobelier, LL.
   hobellarius. See Hobby a horse.] (Eng. Hist.)
   One who by his tenure was to maintain a horse for military
   service; a kind of light horseman in the Middle Ages who was
   mounted on a hobby. --Hallam. Sir J. Davies.
   [1913 Webster]

WordNet (r) 3.0 (2006):

hobbler
    n 1: someone who has a limp and walks with a hobbling gait [syn:
         hobbler, limper]