Kathleen Ann Koester , age 75 of Tombstone, AZ passed away February 6, 2020 at Tucson Medical Center. She was born January 27, 1945 in Freeport, IL to the late Harold and Eunice (Martin) Willis. Kathleen married Marvin Koester on April 23, 1971. Marvin passed away in July of 1997.

She was a 1963 graduate of Elizabeth High School. She had worked at Microswitch in Freeport and was a member of the Order of the Eastern Star in Stockton. Kathleen enjoyed bowling, golfing, horseback riding, fishing, camping and playing cards.

She is survived by her brothers, John (Harlene) Willis of Wilmington, NC and William (June) Willis of Argyle, WI and several nieces and nephews. She was preceded in death by her parents, husband and very dear friend, Larry Colbert.

A committal service will be held on Saturday, April 4, 2020 at Chapel Hill Memorial gardens in Freeport, IL at 11:00 a.m. A memorial fund has been established.