Services will be held at 11:30 a.m. Monday in the Leikness & Stahl Funeral Home in Plainfield. Burial will be in the Plainfield Cemetery.
Visitation will be at the funeral home from 10 a.m. Monday until the services.
Condolences may be offered online at www.plainfieldfuneralhome.com.
Mrs. Schmackel was born Feb. 9, 1917, in Illinois, a daughter of the late William and Emma (Huddleson) Johnston.
She was married to Lyle Schmackel Sr. He died March 18, 1980.
Survivors include one son, Lyle (Elaine) Schmackel, Bancroft; two daughters, Alberta Erickson, Hancock, and Doris (Ray) Smeltzer, Indiana; 12 grandchildren; and several great-grandchildren and great-great grandchildren.
She was also preceded in death by one daughter, Mary Erickson; two sisters, Evelyn Lambert, and Florence Voight; and three brothers, Robert, Donald and William Johnston.