Is this the Gettysburg Republican Compiler reprinting an article from another periodical, the Washington Union? I would guess that is a southern publication.
Yes, and there is no suggestion the Compiler is not sympathetic to that viewpoint.
Remember, in post #40, the Sentinel predicts (accurately) that if the Republicans and Americans (Know-nothings) both run presidential candidates, the result will be victory for the Democratic candidate, "whoever he may be".
Well, turns out that "whoever" was James Buchanan, from nearby Mercersburg and Carlisle, PA.
Buchanan more than any other individual I can think of personifies the words "Doughfaced Northern Democrat".
Highly sympathetic to slavery, Buchanan in 1861 expressed opposition to secession, but did nothing significant to stop it.
Point is: it was not unusual to find border-land Pennsylvanians sympathetic to slavery, and the South.