Patricia Katheryn (Cobb) Armstrong

Patricia Katheryn Armstrong, 84, of Billings, MT, Cottage Grove, MN, Bucyrus, KS and most recently of Libertyville, IL, passed away Saturday, August 8, 2026, at the Condell Medical Center of Libertyville, IL. She was born in 1941 in Billings, MT, and was the oldest of 6 children born to Richard and Pauline Cobb. 

Her life and her work, whether as an employee, a volunteer, or a public servant, was devoted to improving the quality of all of our lives. As a dyed in the wool Democrat, she was elected to the city councils of Cottage Grove, MN, and Lenexa, KS. She served on the water boards of Johnson and Miami counties in Kansas. She was active in the League of Women Voters and helped organize the 1980 Reagan / Mondale Presidential Debate in Kansas City, MO. As a Master Gardener in Miami County, KS, she helped organize the landscaping for the Ursuline Gardens in Paola, KS.

Patti is survived by her son; Brian, her granddaughters; Julia and Claire Armstrong, brother; Daniel Cobb, brothers in law; Joseph Hormcik and Carl Bagley, sisters in law; Lynda Cobb, Tamera Cobb, and Joann Cobb, and many nieces, nephews, and cousins. She was preceded in death by her husband of 50 years, Bernard Armstrong, her son Karl Armstrong; her parents Richard and Pauline Cobb; and her siblings Dixie Hromcik, Darrell Cobb, Donald Cobb, and Paula Bagley.

Services were held privately. Interment of cremains will be at the Highland Cemetery, Great Falls, MT. Donations in her honor should be made to the Arbor Day Foundation or your local extension office.

The Symonds Lakes Funeral Home of Grayslake, IL were entrusted with arrangements, for additional information please contact the funeral home at 847-543-1080

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