Bonnie graduated from Clarksville High School in 1962, Allen Memorial School of Nursing in 1965, and Mayo School of Health Sciences 1981. She married Keith Oltmann on September 5, 1965. Keith and Bonnie lived in several towns in Iowa before going to Temple, Texas, where she was employed 34 years at Baylor Scott and White Hospital as a nurse anesthetist.
Bonnie was a member of First Methodist Church, American and Texas Association of Nurse Anesthetist.
Bonnie is survived by her husband Keith, 2 sons; David (Linda) of Cedar Park and Tom (Malu) of Dripping Springs, 4 grandchildren, Mario and Travis Oltmann, and Jeffrey and Tyler Dillard; brother Donnie Niehaus of Allison, Ia, 2 sisters, Joyce Hirsch and Karen Miller, both of Clarksville Ia.
Memorial services will be held at 1:00 pm, Saturday, October 4, 2025 at First Methodist Church with Inurnment at Central Texas Veterans Cemetery, Killeen. Memorials may be made to First Methodist Church or charity of your choice.
