Corrected entry: When Linus Rawling's son comes home from the Civil War, his brother shows him their parents' gravestones, and says something to the effect that "Paw isn't really buried here, I just set up a marker." However, the ground in front of Linus Rawling's gravestone is raised into a rectangular mound. If there is just a gravestone with nothing buried under it, the ground in front of it should be flat.
Corrected entry: During the fight at the river pirates land base, Jimmy Stewart throws a small keg of gunpowder at a fire. Seconds later there is a very large explosion. Frame by frame slow motion reveals that the keg hits the log behind the fire and totally shatters spilling its contents over the fire and nearly putting it out. Had the keg contained gunpowder it would have instantly caught fire.
Correction: It is possible that an empty coffin was buried in the grave. This is not unheard of in other cases.
Noman ★
Linus was killed at Shiloh which took place almost exactly 3 years before the end of the war when Zeb obviously comes home. Coffin or no, after 3 years the mound would no longer look fresh if indeed there would be much if any mound left at all.
William Lanigan