In Intruder in the Dust these "four or five men" take Jake Montgomery's body from the truck that brings it into town and through the back door into the funeral parlor (178).
The "Tennessee police" who close Jake Montgomery's roadhouse and "run him back across the Mississippi line" in Intruder in the Dust are presumably state police officers (113).
Like the other black inhabitants of Jefferson and Yoknapatawpha, the "street department crews" are no where to be seen on the Monday after Lucas is arrested, though this doesn't prevent the narrator of Intruder in the Dust from describing their usual employment: "flushing the pavement with hoses and sweeping up the discarded Sunday papers and empty cigarette packs" (119). One irony of Intruder is that the absence of the black population results in the narrative describing them in more detail than any other Yoknapatawpha fiction provides.
In the last chapter of Intruder in the Dust we learn that "for weeks" after the story ends, these "strangers" would ask the people of Yoknapatawpha how a man in jail could get hold of a gun to shoot himself with (232). Apparently they don't have any other questions about what has happened in the novel.
This "old lady, dead now" is called a "spinster" by the narrator of Intruder in the Dust. She was "a neighbor" of Chick Mallison, who baked treats for "all the children on the street" and taught them to play a card game that she made sure she won (58).
According to Intruder in the Dust, Mondays through Fridays these "owner-contractor-operators" drive the buses that carry the children of the county to school in town, but on Saturdays and holidays they turn the buses into "pay-passenger transport," charging the country people a fare to bring them to Jefferson (132).
In Intruder in the Dust the crew who work in the sawmill where trees from Sudley Workitt's land are turned into lumber are "hired by the day" (219). They are almost certainly not the same men as the "three youngish white men from the crew of a nearby sawmill" (18). The two sawmills are close enough in space, but not in time: that earlier group appears three years before the Gowrie's begin harvesting Workitt's timber.
In Intruder in the Dust these three "youngish white men from the crew of a nearby sawmill" are all "a little drunk" in Fraser's store when Lucas Beauchamp enters (18). One of them, with "a reputation for brawling and violence," is more than a little racist: he goes after Lucas for his attitude, calling him "biggity" among other names (18, 19). (This crew is probably entirely different from the "[saw]mill crew" who are hired three years later by the Vinson and Crawford Gowrie.)