"The history of prohibitions on concealed carry extends to the carrying of concealed weapons during travel. Even before cars and trucks, the Tennessee Supreme Court held that carrying a “navy six [pistol] in a scabbard hung to the horn of [a defendant’s] saddle” was grounds to convict the defendant for unlawfully carrying a pistol “that can be carried lawfully only openly in the hands.” Barton v. State, 66 Tenn. 105, 105-06 (Tenn. 1874). Similarly, the Alabama Supreme Court affirmed the conviction of a defendant who concealed a pistol in a handbasket that the defendant carried with him on a train car. Diffey v. State, 5 So. 576, 576 (Ala. 1889). After the advent of automobiles, the Court of Appeals for the District of Columbia upheld a conviction for carrying a concealed weapon under a vehicle seat. The court approved a jury instruction that said the governing statute applied if the defendant “had a pistol concealed in the automobile, though not on his person, but within his reach.” Brown v. United States, 30 F.2d 474, 475 (D.C. Cir. 1929)." US v. Adams No.: 16-2529 (8th Cir, Jan 29, 2019) Slip Op. at 5.
This may come as a shock to some of you here but I disagree with the holding of the court. The two relevant points in time are 1791 and 1868 when considering Second Amendment questions. Prohibitions enacted during the Reconstruction Era in states under Northern occupation have no bearing on what the Framers of the Second and Fourteenth Amendments understood the right to mean. 20th-century cases, other than SCOTUS decisions, are even further removed.
That said, as a matter of law there is no Second Amendment right to concealed carry in the 8th circuit, not even for travelers.