Communication policies for prisoners (visiting prisoners and prisoners writing and receiving letters) in U.S. states prisons and in some other countries’ prisons in 1902 and 1912.

Dataset sheets:

• communication policies 1902: communications policies in U.S. state prisons (write letters, receive visits); not all state prisons covered. Similar data for prisons in Wurttemberg, Austria, Holland, Great Britain, and Saxony
• written communication 1912: communications policies in U.S. state prisons (sending letters, receiving letters, receiving magazines and newpapers); covers all state prisons
• written 1912 summary: summary statistics of communications policies in 1912, with comparison to specific states covered in 1902

Related datasets:

• prisoner communication policies in mid-19th-century U.S.
• spectator business at early 19th-century U.S. prisons
• parole difficulties related to prisoners’ communication