The Calvin Alumni Association consists of all those who have attended Calvin College for at least one year or more. Currently, there are 60,000 members worldwide. The association is governed by 21 alumni board members who serve three-year, non-renewable terms and see to the mission of the organization—to connect, strengthen and inspire.


The Calvin Alumni Association connects alumni, strengthens the college, and inspires alumni to answer God’s call.


An active, engaged network of Calvin students, alumni and friends who:

  • Help each other through lifelong connections
  • Support the college
  • Inspire each other to be agents of renewal

Bylaws and constitution

See our separate bylaws and constitution pages for more information.

2018–2019 board members

The Calvin Alumni Association is governed by alumni from all over the world who meet on campus three times a year to represent alumni to college offices and to develop services for alumni. You are invited to contact the entire board or the representative of your choice with ideas or questions by sending an email to; we’ll make sure the message is received. You can also find contact information for individual alumni in the Alumni Directory (login required).

Twana Graves Davis ’93, president
Katy, Tex. (Houston)
Clinical Director
The Speech and Language Connection: Tanglewood

Gene Miyamoto ’77, vice president
Holland, Mich.
Health Services Advisor

Brianna Sas-Pérez ’11, secretary 
Milwaukee, Wis.
Executive Director
Layton Boulevard West Neighbors

Rick Treur ’93, ex officio
Calvin Alumni Association

Barbara Boers ’86, ex officio
Calvin Financial Services

Sarah Berg ’06
Washington, D.C.
Officer–Philanthropic Partnerships
The Pew Charitable Trusts

Jori Brink ’04
Chicago, Ill.
Corporate Controller
Lurie Children’s Hospital of Chicago

Jerry Cooper ex'66
Holland, Mich. / Bradenton, Fla.
Retired Field Administrator
U.S. Department of Transportation

Carlos Erazo '14
Dallas, Tex.
Media Producer, Social Media Marketing Specialist, Artist, Speaker

Jim Jenkins ’87
Everett, Wash.
Security Architect
Boeing Employees Credit Union (BECU)

Rachel Johnson-Melville '02
Muskegon, Mich.
Program Director of English
Baker College of Muskegon

Jack Kalmink ’69
Grosse Pointe Park, Mich.
Litigation Lawyer
Clark Hill PLC

Casey Kuperus ’97
Grand Rapids, Mich.
Executive Director
David's House Ministries

James Lee ’12
East Islip, NY
Senior Pastor
Christ Community Church

Rosanne Lopers-Sweetman ’77
Toronto, Ont.
Chief Administrative Officer – Faculty of Kinesiology and Physical Education
University of Toronto

Rebecca Mejia ’05
Hawthorne, N.J.
Project Manager
Boswell Engineering

Christine Jacobs Mouw ’88
North Little Rock, Ark.
Supervisory Museum Curator
William J. Clinton Presidential Library

Debra Perry ’91
Grand Rapids, Mich.
Music Teacher
Grand Rapids Public Schools

Valerie Stegink Sterk ’83
Santa Clara, Calif. (Bay Area)
Organist/Pianist and Music Coordinator
Sunnyvale Presbyterian Church

Mark Tigchelaar '06
Bellflower, Calif. (Southern CA)
Managing Partner
Solid Coffee Roasters

Jim Valk ’87
Kalamazoo, Mich.
Managing Principal
Jansen Valk Thompson & Reahm PC

Cathy Van Zeelt Van Donselaar ’88
Centennial, Colo. (Denver)
Elementary Learning Specialist
Front Range Christian School

Gary Van Prooyen ’88
Wheaton, Ill. (Chicago)
Vice President–Marketing and Communications