Trinity Park Conservancy is a nonprofit dedicated to the stewardship of Dallas’ largest public green space, the 10,000 acres of the Trinity River. Believing that the River is the natural gathering place for all Dallas residents, the Conservancy is committed to bringing people together to share their ideas, learn more about the possibilities and habitat of the area, and to assist in making it a more accessible space. In 2018, the Conservancy was selected to design, construct and maintain the future Harold Simmons Park in a private/public partnership with the City of Dallas and the Trinity River Corridor Local Government Corporation. Trinity Park Conservancy is dedicated to continuing conversations in the community throughout the Park development process.


Championing a Trinity River that forever deepens our connection to nature and each other.


The Trinity Park Conservancy champions the transformation of the Trinity River to become the heart of Dallas. With the community, we will design public spaces that unite us, enrich people’s lives through access to nature, create economic development opportunities, and inspire protection for the river ecosystems in this shared natural treasure.


Fulfilling the promise of the Trinity River as the natural gathering place for Dallas.

Commitment to Equity

Equity is inextricably a part of our mission and necessary in making Harold Simmons Park successful — a Park that unites our city across the Trinity River, when the river has historically divided us. Our vision for the future is one in which the Park contributes to a more just and thriving Dallas.

To us, equity means that all people — of all races, ethnicities, ages, genders, sexual orientations, religions, health and ability statuses, or any other considerations — have the right to access, dignity, and value; have the right to inclusively participate in all dimensions of civic and economic life; and can achieve their full potential.

Throughout the history of our country, every facet of community life has been shaped by systemic inequities that create structural and institutional barriers to racial and social justice. Only by acknowledging, confronting, and working to break down these barriers can we achieve our mission of building spaces that unite us. We start by acknowledging the Caddo Tribe – the original people who once stewarded the land we now occupy.

As we work to achieve an equitable Park and our commitment to long-term stewardship, we will continue to learn from those at the forefront of the movement for racial and social justice and are supportive of their work nationally and locally by actively building partnerships within our own community.

A great park is one where all feel welcome and can access the healing power of nature. We are committed to deliberate and continued partnerships with communities that are underrepresented in public spaces and in public life to overcome barriers to participation, particularly those due to systemic racism. We are working with our neighbors, the City of Dallas, and the Trinity River Corridor LGC so all residents can share in the Park’s transformative economic impacts, enjoy healthy neighborhoods, and access new pathways to opportunity.

We acknowledge that this work is challenging and we commit to continued growth and learning. We will hold ourselves accountable in these efforts, and we expect our community partners to hold us to a standard that is nothing less than a Park that is committed to the inclusion of all of Dallas’ residents and visitors.


We respect your privacy and will not sell or trade users’ or donors’ personal or confidential information to any other parties without express permission.

Our Accountability

Trinity Park Conservancy is committed to accountability and transparency. Our Form 990, our audited financial statements and our whistleblower policy give us the opportunity to share how our careful and effective use of donations funds impactful projects. Data on our nonprofit can be found on Guidestar and Charity Navigator.

2017 Form 9902017 Audited Financial Statement2018 Form 9902018 Audited Financial Statement2019 Form 9902019 Audited Financial Statement2020 Form 9902020 Audited Financial Statement2021 Form 9902021 Audited Financial Statement2022 Form 9902022 Audited Financial Statement

Board of Directors

  • Deedie Rose // Board Chair
  • Marguerite Hoffman // Vice-Chair
  • Garrett Boone // Conservation Chair
  • Walter Elcock // Secretary, Governance Chair
  • Rebecca Fletcher // Development Chair
  • Cris Jordan // Programming Co-Chair
  • Robert Witte // Programming Co-Chair
  • Roy Lopez // Community Engagement & Inclusive Neighborhoods (CEIN) Chair
  • Jack Matthews // Treasurer, Finance Chair
  • Jeanne Phillips // Communications Chair
  • Lucilo Peña // Design Advocacy Chair
  • AJ Barkley
  • Tynesia Boyea-Robinson
  • Peter Brodsky
  • Laura Bush
  • Matrice Ellis-Kirk
  • Don Glendenning
  • Ginger Hardage
  • Darren James
  • Max Lamont
  • Nancy Marcus
  • Joe May
  • Marc Nivet
  • Carolyn Rathjen
  • Byron Sanders
  • Emily Summers
  • Kelvin Walker

TPC Staff Contacts

Tony Moore, President and CEO

John Trahan, Chief Financial Officer

Lindsay Abernethy, Chief Advancement Officer

Marcus Shropshire, Capital Projects, Director 

Brian Lapidus, Chief Marketing Officer

Lariza Moreno, Marketing & Communications Manager 

Jimena Vivanco, Conservation Manager

Shayna Stonom, Executive Assistant

John Hill, Community Engagement Director

Sam Acosta, Community Engagement Director 

Patricia Johnson, Advancement Manager

Maryam Baig, Programming and Experience Manager

Tiffany Vega, Director of Philanthropy 


Affiliate Groups