Series documents the imprisonment of Sons of Freedom convicts at Piers Island Penitentiary between 1932 and 1934, from its initial stage in search for an island to set up the prison to determining the conditions for release of the prisoners. The records, the majority of which consist of correspondence between senior officials, shed light on the construction and management of the prison, as well as the problems that the federal prison system encountered regarding both personnel and prisoners.
Series consists of textual records including correspondence, telegrams, and memoranda, most of which were written to or by H. W. Cooper. The remainder of the records were created by other authorities, prisoners, and relatives of prisoners. Series also contains a warrant written by J. Cartmel and a chronology written in shorthand by H. W. Cooper. Also included in the series is an empty manila envelope. The records in this series have been arranged into the following three files: 1932; 1933; and 1934.