Discontinuity : In this episode we learn that the Maverick brothers hail from the town of Little Ben, Texas - which appears to be located somewhere in the central or western part of the state. Yet in future episodes, both brothers mention that they hailed from the eastern part of Texas. It's also stated that they cannot return to the Lone Star state because of a pending murder charge, yet in subsequent seasons they make several forays into Texas.
Furthermore, in a later episode it's revealed that Bret Maverick was born in 1847, which would make both brothers seem rather young to have served in the Civil War. One final oddity : while part of this episode takes place in their hometown, the boys oft-quoted Pappy is never even mentioned in the dialogue.