Communications policies in individual U.S. state prisons and some local houses of correction and workshops about 1870. Communication policies in five New York county prisons in 1854.
- prisons 1866-1873: by individual prisons, regulations on writing letters and receiving visits
- summary 1870: summary statistics across prisons for regulations on writing letters and receiving visits
- NY county prisons 1854: for New York State county prisons, prison regulations on conversations among prisoners, writing and receiving letters, and receiving visits