How about the Mississippi and Alabama 2-6-2 documented in Lucius Beebe's Mixed Train Daily? My failing memory says that lasted later than LOP&G.
In a message dated 5/17/2008 5:52:13 A.M. Eastern Daylight Time, kramsf@yahoo. com writes:
I would like to know what was the last wood burning locomotive to be used in regular or standby service by a US common carrier. I'm interested in learning the last engine's wheel arrangement, number, railroad on which it ran, and the year it was retired from service. I think one of the Florida/Georgia railroads, the LOP&G, the South Georgia or Marianna & Blounstown, may have been the last to run a wood burner but have been unsuccessful in finding anything on the internet to confirm that. Any info and/or links to a reference would be greatly appreciated.