Data Appendix 

Margo Schlanger, Incrementalist vs. Maximalist Reform: Solitary Confinement Case Studies, 115 Northwestern U. L. Rev. (2020)

Restricted housing in prisons, all states: All data plus summary table.  
Restricted Housing in Prisons by Jurisdiction 1979-2017.xlsx

Stata do-files for creating the restricted housing dataset from public data (mostly Bureau of Justice Statistics Prison Censuses).  Download and change file type to .do. 
01 Creating Restricted Housing Dataset.txt
02 Reformatting 1990 Prison Data.txt