Thanks, Jenellen. My dad and I always thought it probably referred to a constellation, never thought of Cygnus!I asked if he knew any more background on it. He said it is an authentic old cowboy song, was on an old 78, which my sister may have, so I'll ask her to take a look that for more info. He said it might have been sung by Carl T. Sprague, but he wasn't sure.
It is a very simple, easy to learn tune, also.
kat