My friend Nate has a rare 6 door 1920's GMC Railroad Depot Hack he acquired over 40 years ago
from Tom Barrett in Phoenix.
Ford made most of the depot hacks, GMC hacks are rare.
Nate believes it was used to transport passengers and freight from the railroad station to the Fred Harvey Lodge(s) at the Grand Canyon.
That would put the hack in use at Williams or Winslow or the Grand Canyon railway station.
I have known Nate for years, a true desert rat with an eclectic vehicle collection.
A great guy
Here is a link to my video:
@ http://www.youtube.com/user/TrulyVintageOnDaRoad
Jim