My prototype - Wheeler & Dusenbury, Endeavor PA - made a regular practice of selective cutting virgin white pine in 120' lengths. To do that they used multiple log buggies, two Barnhart loaders. The mill had a 'temporary' removable trestle for the log carriages to extend them over the log pond, and then shoot them right out of the other end of the mill onto a deck. Never hit any resaw or chain in the mill, through the bandsaw and right out. They were then reloaded on 3 40' flatcars. Even the log deck on the mill had removable walls to clear anything that long.
For years I was 'told' that was for ship masting, but you don't square up a 120' tree for a ship mast. What I did recently find is that the barge yard (coal barges) nominal length was around 110', and that these were single-length pine planks for wooden coal barges on the Allegheny. That only lasted though, until about 1915, when steel barge construction took over. W&D kept a stand of virgin white pine for this market for years, it was never cut, it turned into the Hearts Content recreational area and donated to the US government. My father assisted.
https://www.hmdb.org/m.asp?m=125098
