Boon brags to a "group of men on the Square" about how fast he can make the car go (40). Many of the Yoknapatawpha fictions include a reference to the un- or under-employed men who hang around the Courthouse during the day; presumably these men are of that variety.
This entry represents the people who are in a "carriage or wagon" when the automobile being driven by Boon moves through the Square (39). Some of these horse- and mule-drawn vehicles have "women and children" in them, and some are being driven by women (39). Grandfather Priest's behavior changes, depending on the gender of the driver, but in either case, both the animals and the people are often startled by the presence of the car.