http://johnmilnerarchitects.com

http://pzarchitects.com

http://jonathanalderson.com

http://philipivoryarchitects.com

http://www.archerbuchanan.com

http://www.historicpreservationtrust.org

http://www.portal.state.pa.us/portal/server.pt?open=512&mode=2&objID=1426  (Pa Historical & Museum Commission)