Source : Webster's Revised Unabridged Dictionary (1913)

Gatherer \Gath"er*er\, n.
   1. One who gathers or collects.

   2. (Sewing Machine) An attachment for making gathers in the
      cloth.

Source : WordNet®

gatherer
     n 1: a person who gathers; "they were a society of hunters and
          gatherers"
     2: a person who is employed to collect payments (as for rent or
        taxes) [syn: {collector}, {accumulator}]