This was the last episode broadcast under the title "The Virginian," and the final episode to feature John McIntire, Tim Matheson and Stuart Nisbet. The remaining recurring characters, played by Ross Elliott, Harper Flaherty, L.Q. Jones and Cecil Combs, only made a couple of token appearances in the following season.
The song that Sally Anne (Julie Gregg) sings is "The Whistling Gypsy", composed by Dublin songwriter Leo Maguire in the 1950's. It was popularized by several Irish artists, including The Irish Rovers, who made multiple appearances on The Virginian as themselves.