“Still another is Joe Turner Blues. Here you get folklore with a bang. It goes back to Joe Turney (also called Turner), brother of Pete Turney, one-time governor of Tennessee. Joe had the responsibility of taking Negro prisoners from Memphis to the penitentiary at Nashville. Sometimes he took them to the “farms” along the Mississippi. Their crimes when indeed there were any crimes, were usually very minor, the object of the arrests being to provide needed labor for spots along the river. As usual, the method was to set a stool-pigeon where he could start a game of craps. The bones would roll blissfully till the required number of laborers had been drawn into the circle. At that point the law would fall upon the poor devils, arrest as many as were needed for work, try them for gambling in a kangaroo court and then turn the culprits over to Joe Turney. That night, perhaps, there would be weeping and wailing among the dusky belles. If one of them chanced to ask a neighbor what had become of the sweet good man, she was likely to receive the pat reply, ‘They tell me Joe Turner’s come and gone.'”
via Wikipedia on August Wilson’s play by that name.