"....where he paused
and contemplated, with a face of great calmness and philosophy,
the numerous cads and drivers of short stages who assemble near
that famous place of resort, to .....
Webster's 1913 Dictionary

Definition: \Cad\, n. [Abbrev. fr. cadet.]
1. A person who stands at the door of an omnibus to open and
shut it, and to receive fares; an idle hanger-on about
innyards. [Eng.] --Dickens.

2. A lowbred, presuming person; a mean, vulgar fellow. [Cant]
--Thackeray.