09/03/2026
The Squirrel Cage Jail has held thousands of “customers” over its 84 years as the Pottawattamie County Jail. Who was our most famous inmate? We’re going with John Mabray. Not a household name today, but when we put his name in the search bar of Newspapers.com we got 7110 hits from every state in the Union at that time. By contrast our famed axe murder, Jake Byrd, only netted 2000 or so. Mabray brought us national attention 125 years ago by making us home “The Biggest Swindle On Record” (Washington Post, March 27, 1910). Having “railroads to everywhere” brought Council Bluffs a lot of commerce. It also provided fertile grounds for folks of a less honorable nature. Those railroads brought a lot of potential “pigeons” ready to be fleeced. John Mabray set up shop here, with confederates riding the trains seeking high rollers who wanted to bet “on a sure thing.” Actually, it was a sure thing— it was a sure thing the house would win. The technique was called The Big Store Con (as featured in Robert Redford/Paul Newman’s “The Sting,” Academy Award winner for Best Picture, 1973); Mabray is credited with inventing the technique and perfecting it right here in CB. It was complex and elaborate, but the payoff was huge and the suckers didn’t even know they’d been scammed.