Life Story

John "Jack" Hallsten Armstrong

Obituaries in Geneseo, IL | Geneseo Republic

John (Jack) H. Armstrong passed away Monday, July 27, 2020, in Orlando, Florida.

Jack, originally from Geneseo, IL, was a retired professor and Assistant Dean (University of Central Florida), a faithful member of Saint Margaret Mary Church in Winter Park, FL, an avid reader, dog lover, and bicyclist. He is survived by his wife of 59 years, Barbara; his children Amy Armstrong and John Armstrong (Darleen); and his grandchildren, Mark, Jason, and Heidi Armstrong.

Memorial donations may be made in tribute to Jack to The Aphasia House Fund at UCF. For Jack’s full obituary, please visit

Posted online on September 11, 2020