Edward von Sloane is the town's benevolent,paternalistic banker and he thankfully holds the dramatic center of this played-for-laughs final Three Mequiteers entry. So great in Universal horror movies, Dracula and The Mummy, this is his last big role. As the movie opens, we follow him through the main town street. The heroic trio doesn't appear until minute 13 of this 1 hour movie. Jimmie Dodd (of Mickey Mouse Club fame)is the most animated of the three and gets to invent a very clever jailhouse blues song that summarizes the plot. Western cult favorite Bob Steele gets to spar for the very last time with his all-time favorite "dog heavy" punching bag, Charles King. King, despite being portly, was expert at faking fights. Steele, a small but brilliant fighter, was as a result, very popular in the 30s B westerns which otherwise often featured horrendously phony fisticuffs. Eventually, Steele's morose persona would be memorable in supporting roles, most notably, The Big Sleep. A chain-smoker, he died of emphysema. Sloane's banker character has two wayward offspring. Rick Vallin, the son, is familiar from late-era serials and 50s TV. The daughter, Lorraine Miller, is a non-entity yet is top-billed (above Sloane!) after the three cowboy stars. She did nothing of significance before or after this. How, oh, how, oh, how did she get top-billing? Perhaps I'm being cynical and it's simply a courtesy because she's the sole female character. Ultra-dependable heavy Roy Barcroft is here at the very beginning of his lengthy Republic Studios tenure.

Riders of the Rio Grande was the last in Republic's Three Mesquiteers series. From the start the plot builds around an honest man trying to hold together the local bank he owns to keep the whole town from going bankrupt after the bad guys rob the vault. We do not see the Mesquiteers until about fourteen minutes into the movie, but as soon as they arrive a fight scene begins. Republic was always good at providing plenty of action in their movies. Mistaken for the Cherokee Boys, the team of Tucson, Stony, and Lullaby has to evade the local sheriff as they work to right the wrongs in this last adventure.Harry Worth is excellent as the main villain, Skelly. He had a cold, gentlemanly demeanor as he led the criminal gang in more than one movie. Riders of the Rio Grande has several of the actors that made B westerns fun. By 1943 Republic had perfected the quickly made western, and this movie proves it. The pacing and the story keep flowing nicely with no dull moments.Knowing this was the end of the Mesquiteers series I had to wonder if they would go down on a low note or deliver the level of the series' past great moments. I was not disappointed. As much as I prefer the Livingston, Corrigan, Terhune lineup, the final lineup of Bob Steele, Tom Tyler, and Jimmie Dodd worked well.In one scene Dodd pronounces "Mesquiteers" as "mess keet ers", much like someone with a Southern drawl would pronounce "mosquitoes." I had always thought it was pronounced similar to "Musketeers."