Pennsylvania Department of Corrections - http://www.cor.pa.gov/Pages/default.aspx

Pennsylvania Prison Directory - https://paprisondirectoryaction.wordpress.com/prison-justice-and-advocacy-groups/

Pennsylvania Prison Resources -  https://www.hrw.org/news/2010/07/20/pennsylvania-prison-resources

Prison Society - http://www.prisonsociety.org/about_us

Inmate Family Support Group - https://allisonpark.churchcenter.com/groups/network-of-hope-support-groups/support-group-for-family-friends-of-prisoners

Meetup Group - https://www.meetup.com/Gwynedd-Support-Group-for-Families-of-Prisoners-Meetup/

Southwestern Pennsylvania Re-entry Coalition (SPARC) - https://monvalleyinitiative.com/sparc-overview/

Trails Ministry - https://trailsministries.org/

Here's a handbook from 2013, but may have some helpful information; as well as the Pennsylvania Dept. of Corrections website:
http://www.cor.pa.gov/Documents/handbook%20for%20family%20and%20friends.pdf