Ken Greschak is a member of the Coordinating Team for Indivisible Greater Kalamazoo since its inception in early 2025 when the group was a mere 12 people. It now numbers nearly 3,000 registered members, with thousands more showing for its protests and rallies around the area. IGK meets bi-weekly on Wednesday evenings at People’s Church on North 10th Street. The organization coordinates with other like-minded activist groups to defend democracy and oppose autocratic tyranny.

During the working day, Ken is the Estate and Planned Gift Advisor for the Kalamazoo Community Foundation. Previous professional positions were as the VP of Development for the Alzheimer's Association, Michigan Chapter; Director of Fund Development and Life Enrichment with Friendship Village; Director of Business and Fund Development for Milestone Senior Services and Director of the American Cancer Society, Southwest Michigan, among others. He also served two terms on the Board of Education for Kalamazoo Public Schools and on other community boards.

Ken first arrived in Kalamazoo in 1979 when he enrolled at Western Michigan University (BA in Psychology and English) and has stayed ever since. He and his wife, Dana DeLuca, have raised three children and are the joyous grandparents of three!