Ethel Koster, age 96, of South Holland, IL, passed away Sunday, August 4, 2013. Beloved wife of the late Gerrit Koster. Devoted mother of Evelyn (late Gordon) Schrieber, David (Judy) Koster, Ralph Koster, and the late Gary Koster. Proud grandmother of 5; great-grandmother of 8 and one late great-granddaughter. Dearest sister of Robert and Orville Wiersma. Preceded in death by her parents Robert and Tina Wiersma. Visitation Wednesday, August 7, 2013 from 2:00 - 8:00 p.m. at the Smits, DeYoung-Vroegh Funeral Home 649 E. 162nd St. (Rt.6/159th St.) South Holland, IL 60473. Funeral service Thursday, August 8, 2013 at 11:00 a.m. at First Reformed Church (15924 South Park Ave. South Holland, IL 60473) with Rev. Matt Waterstone officiating. Interment Oakland Memory Lanes Cemetery - Dolton, IL. In lieu of flowers memorial contributions to First Reformed Church or Ingalls Inpatient Hospice (One Ingalls Dr. Harvey, IL 60426) appreciated.