About Us2022-09-27T15:59:25+00:00

Our Staff

Jill Stockwell
Jill StockwellDirector
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Jenny Greene (Astrophysics)
Jenny Greene (Astrophysics)Academic Director
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Tara Ronda
Tara RondaProgram Coordinator
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Christopher Etienne
Christopher EtienneSTEM Program Coordinator
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Our Graduate Fellows


Our Funders & Supporters


January 2005


PTI is founded by a group of PU astrophysicists led by postdocs Mark Krumholz (’98) and Jenny Greene, and Professor Jill Knapp.

January 2006


Krumholz and his team teach their first PTI class, “Intermediate Algebra with Applications,” at Garden Sate Youth Correctional Facility (and accredited by Mercer County Community College).

January 2007


Krumholz and other Princeton scientists begin teaching classes at Edna Mahan Correctional Facility for Women.

January 2008


  • PTI begins teaching English composition courses in partnership with the Woodrow Wilson School and the Pace Center for Civic Engagement.
  • PTI also initiates partnerships with The College of New Jersey and Rutgers University to expand course offerings.

January 2013


PTI becomes a founding member of the NJ Scholarship & Transformative Education in Prisons (NJ-STEP) Consortium, which begins to create a comprehensive statewide prison education network.

January 2014


PTI participates in the first-ever college graduation in a New Jersey prison, when 14 students at Edna Mahan Correctional Facility for Women receive associate’s degrees from Raritan Valley Community College.

January 2015


Eight more students, this time at Garden State Youth Correctional Facility, earn associate’s degrees.

January 2016


  • PTI becomes part of the university’s Program in Teacher Preparation.
  • Jill Knapp initiates a partnership with the Federal Bureau of Prisons at Fort Dix.

January 2017


PTI becomes part of the university’s McGraw Center for Teaching & Learning.

June 2017

June, 2017

PTI launches a STEM Research Experiences for Undergraduates (REU) program at Princeton for formerly incarcerated students, with funding from the National Science Foundation.

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