Source : Webster's Revised Unabridged Dictionary (1913)

Bagman \Bag"man\, n.; pl. {Bagmen}.
   A commercial traveler; one employed to solicit orders for
   manufacturers and tradesmen. --Thackeray.

Source : WordNet®

bagman
     n 1: a salesman who travels to call on customers [syn: {traveling
          salesman}, {travelling salesman}, {commercial traveler},
           {commercial traveller}, {roadman}]
     2: a racketeer assigned to collect or distribute payoff money