Julia Koster Obituary
With heavy hearts, we announce the death of Julia Koster of Caledonia, Michigan, who passed away on June 8, 2025. Leave a sympathy message to the family on the memorial page of Julia Koster to pay them a last tribute.
She was predeceased by: her husband Robert Koster Sr.; her parents, Joe Kortman and Rena Kortman; her children, Lori Joldersma and Jack Koster; her daughter-in-law Sue Koster; and her siblings, Harvey, Gerald, Ken Kortman, Ada Overman and Fenna DeHaan.
She is survived by: her children, Bob Koster (Rhonda), Beverly Wigger (Jim) and Mike Koster; her children-in-law, Kim Perry (Erick) and Randy Joldersma (Jodi); her grandchildren, Amanda Helmholdt (David), Christy Rozema (Matt), Ben Koster (Joni), Ellie Koster, Hanna Whyte, John Whyte, Tim Wigger (Stacey), Julie DeVries (Brad), Justin Wigger (Jessica), Brian Koster (Katie), Keri Penning (Jeremy), Katy Vander Vennen (Jeremy), Matt Joldersma (Courtney), Kellie Bozek (Jim) and Kyleigh DeGroot (Josh); her sister Joan Koetje; and her siblings-in-law, Ed Koster (Joyce), Shirley Dornbos (Dave), Ginny Dykstra, Aud Kortman and Nella Kortman-Niezink. She is also survived by 33 great-grandchildren, many nieces and nephews.
In honor of Julie, memorial contributions may be made to The Gideons International or Optimal Care Hospice.
