Staff

A nine-person professional staff supporting durable grantmaking.

Names and photos below are ready for replacement as final team photography and biographies become available.

Placeholder staff portrait for Diane M. Halverson-Krell

Diane M. Halverson-Krell

Executive Director

Leads foundation strategy, governance coordination, and long-range stewardship of the perpetual endowment.

Placeholder staff portrait for Thomas R. Halverson

Thomas R. Halverson

Board Chair

Guides board oversight and preserves the founding family's long-term philanthropic priorities.

Placeholder staff portrait for Patricia Osei-Bonsu

Patricia Osei-Bonsu

Director of Programs & Grantmaking

Oversees program strategy, grant review, site visits, and due diligence across the annual cycle.

Placeholder staff portrait for Erik J. Lundquist

Erik J. Lundquist

Chief Financial Officer

Manages financial reporting, spending policy analysis, and endowment administration.

Placeholder staff portrait for Sonja L. Reinhart

Sonja L. Reinhart

Investment Committee Chair

Chairs the volunteer committee responsible for reviewing asset allocation and capital preservation.

Placeholder staff portrait for Marcus D. Thayer

Marcus D. Thayer

Director of Community Partnerships

Coordinates multi-year funding cohorts, convenings, and co-investment relationships with peer funders.

Placeholder staff portrait for Eleanor Voss

Eleanor Voss

Senior Program Officer

Supports workforce education and vocational training partnerships across Minnesota and Wisconsin.

Placeholder staff portrait for Caleb M. Rojas

Caleb M. Rojas

Grants Manager

Maintains grant records, reporting calendars, application materials, and grantee communications.

Placeholder staff portrait for Maren A. Whitcomb

Maren A. Whitcomb

Operations Coordinator

Supports office operations, meeting preparation, and administrative continuity for the foundation team.