Sources!

1. http://www.easternstate.org/
2. http://en.wikipedia.org/wiki/Eastern_State_Penitentiary
3. http://www.oboylephoto.com/esp/esp1-1.htm
4. http://www.opacity.us/site98_eastern_state_penitentiary.htm
5. http://missioncreep.com/mw/estate.html
6. MOST IMPORT PRIMARY DOCUMENT:http://books.google.com/books?id=vOksh31rBSAC&pg=PA47&lpg=PA47&dq=eastern+state+penitentiary&source=bl&ots=ESo7sWhJCG&sig=79oWlCTcBk8l26GtyHOjn1PcnRA&hl=en&ei=8138SszRN8ndnAfQk5CeBQ&sa=X&oi=book_result&ct=result&resnum=2&ved=0CAsQ6AEwATgK#v=onepage&q=&f=false
7. http://www.geecoders.com/MollyMaguires/eastern.html
   
8. http://www.prairieghosts.com/eastern.html