light porter

noun2

1. •
   A type of porter ale lighter in color than the typical dark porter.
2. •
   (no longer used) A worker whose duties involve carrying light (i.e., not heavy) packages, as in a bank.

   • There is nothing exhilarating in caudle, nor enchanting in Kensington-gardens, when you are converted into a light porter of children. — 1841