Gertrude Marie Koster (1923 - 2011)

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Gertrude Marie Koster


Gertrude Marie Koster, 88, formerly of Waterloo, died Tuesday, November 8 at Mercy Hospice in Johnston, IA, due to complications of a stroke.

She was born October 26, 1923 in Fairbank, IA, daughter of Arista and Cora Metcalf Hayes.

She married Richard Koster on October 23, 1944 in Waterloo. He died January 17, 1985.

Gertrude graduated from East High School, Waterloo, in 1942. She was a homemaker.

She is survived by four sons, Larry (Judy) of Woodbury, MN, Tom (Mary) of Sioux City, Jim (Corey) of Waterloo and Bob (Robbi) Koster of Grantsburg, WI; three daughters, JoAnn (Ron) Bruns of Ellisville, MO, Toni (Neil) Krejci of Marion and Peg (Wayne) Winkie of Urbandale; 18 grandchildren and 15 great-grandchildren.

She was preceded by her parents; two brothers, Bob and Laverne Hayes; three sisters, Mary R. Jensen, Grace (Jean) Dennis and a sister who died in infancy; also a grandchild and a great-grandchild.

Services will be 10:30 a.m. Monday at Blessed Sacrament Catholic Church, with burial in Mt. Olivet Cemetery, both in Waterloo. Public visitation will be from 4 to 7 p.m. Sunday at Hagarty-Waychoff-Grarup Funeral Service, 400 South Street, where there will be a rosary at 4 p.m. Visitation also for an hour before services at the church on Monday.

Memorials may be made to St. Mary's of Nazareth, St. Vincent DePaul Society or Mercy Hospice in Johnston, IA.

Online condolences may be left at

Funeral Home
Hagarty-Waychoff-Grarup Funeral Service on South Street - Waterloo
400 South Street  Waterloo, IA 50701
Funeral Home Details
Published in Des Moines Register on Nov. 11, 2011