The NRA poster outside the bank reads "Foreword into Prosperity" instead of "forward."
At 17:27, when Yancey and John-Boy are on the way to Wheeling, right as John-Boy says, "Not yet," a 1960s era pickup truck can be glimpsed as they drive past it.
It's illogical for John-Boy to seek work in Wheeling, WV, a whopping 335 miles away, when there are substantially larger cities much closer to home, such as Charlottesville (25 miles) or even the capital city of Richmond (95 miles).
Olivia smells the stew burning from the front door but Mary Ellen, who is sitting right in front of the stove, doesn't smell it at all.