Ruth Koster Obituary

With solemn reverence, we commemorate Ruth Koster (Grand Rapids, Michigan), whose life came to an end on April 13, 2026 at the age of 91, leaving behind cherished memories. Leave a sympathy message to the family in the guestbook on this memorial page of Ruth Koster to show support.

She was predeceased by: her husband George J. Koster; her siblings, Elois Heuker and James Kruithof; her grandson Dylan Herwerden; her sister-in-law Donna Kruithof; her granddaughter Mary Jo Koster; her great grandchild Abbigayle Koster; and her father Fred Kruithof.

She is survived by: her mother Sena Kruithof; her grandchildren, Glenn, Charlcie Koster, Jerry, Holli Koster, Colby, Heather Whitfield, Laura Day, Matthew, Melissa Koster, Nancee Herwerden, Tyler Herwerden, Geena Merkel, Madison Herwerden, Gary, Lorrie Koster, Brent, Meghan Koster, Carson and Christie Dood; her brother Harvey (Karen Kruithof); and her brother-in-law James Heuker. She is also survived by many nephews, nieces and special cousins, along with many long-time friends.

In lieu of flowers, memorial gifts may be given to the MISSION FUND of Beckwith Hills CRC (https://bhcrc.churchcenter.com), 2100 Chelsea NE, Grand Rapids, MI 49505.