Thanks, Mark Ross.
Here is the full comment on "Fifty Thousand Lumberjacks," from the Big Red Songbook.

"Joyce Kornbluh (p. 267) reports that "Fifty Thousand Lumberjacks" commented on the 1917 strike of Northwest loggers. It marked an "advance" in Wobbly songlore by its close description of actual working conditions as well as its lack of visionary rhetoric. These factors contributed to its retention by forest workers. It also holds interest as it was set to the tune of "Portland County Jail," first noted in 1927 as a folksong by Carl Sandburg in the American Songbag.

This implies that "Portland County Jail" is earlier.

Further comment is given with "The Portland Revolution."

"Dublin Dan
"Dublin Dan Liston had appeared previously in a Wobbly songbook with "Dan McGann (157). "Portland County Jail," the tune for "The Portland Revolution," had been used for "Fifty Thousand Lumberjacks" (130). Although Liston did not achieve the fame of fellow contributors, his mastery of traditional ballad style coupled with his command of Celtic humor gave his offerings continued value......."