In "An Occurrence at Owl Creek Bridge" was Farquhar a federal soldier and how can you tell?

We can tell
that Peyton Farquhar is not a federal soldier because it tells us more than once that he is
not.

First, we are told that he is a civilian.

Second, we
are told that he was from a rich Alabama family.  He is said to be an ardent supporter of the
Confederacy.

We are told that Farquhar is being hanged because a Union scout
(who was pretending to be a Confederate soldier) provoked him into trying to burn down the Owl
Creek bridge.  The soldier was probably on a mission to try to get possible trouble makers to
show themselves.