She was born on June 25, 1935, near Cambridge, IL, the daughter of John W. and Edna D. (Fitch) Pobanz. She married Joseph A. Geiger on January 8, 1955, in Galva. He died August 3, 2024. Joan had worked at DeKalb Feeds for several years before retiring. She was a member of Sacred Heart Catholic Church. Joan was an excellent baker and enjoyed sewing and doing needlepoint. She was a past 4H leader with the Jordan Super Sallies and the Whiteside County Home Extension.
Survivors include three daughters: Rebecca Dickey of Rock Falls, Katy (Mike) Frankfother of Milledgeville and Teresa (Jane) Geiger of Amboy; two sons: Michael (Kay) Geiger of Sterling and Andrew (Marilyn) Geiger of Sterling; her brother, Sidney Pobanz of Cambridge; ten grandchildren: Jason(Caprice) Dickey, Chris (Melissa) Geiger, Tabitha (John) Swicegood, Tim (Ashley) Geiger, Sara Geerts, Jennifer (Nate) Tornow, Emily (Dustin) Dirks, Bradley (Lily) Geiger, Stephen Geiger and Megan (Jalen) Geiger; 12 great grandchildren: Danika, Colton, Brayden, Rylee, Ashton, Brynlee, Charlotte, Taylor, Brooklyn, Stella, Memphis, and Annabelle.
She was preceded in death by her parents and brother, J. Allen Probanz.
Visitation will be held on Wednesday, April 8, 2026, from 9 to 10 AM at Sacred Heart Catholic Church in Sterling. Followed by the Celebration of Mass of Christian Burial at 10 AM, with the Reverend Thomas Doyle officiating. Burial will be at 12:30 PM at Rosedale Cemetery near Cambridge.
Memorials may be made in her memory to Sacred Heart Church and Rock River Hospice & Home.