Adam Henry Siebel

Adam is survived by his wife, Joy Keller. Also surviving are his children, Brandon (Cidney) Keller, Cailee (Rai) Siebel, and Bryson Siebel; two granddaughters, Kyleigh and Kinley; two siblings, Bekkie Siebel and Ben Siebel; and two brothers, Mark (Shanan) Niemann and Daniel (Lisa) Kohler.

He was preceded in death by his parents, Jerry and Jennifer, nephews, Dallas Atherton and Nicholas Rogers and by his bonus daughter, Cassie Calhoun.

Those who knew Adam understood that family—especially his children and granddaughters—were everything to him. He showed up for the people he loved. He had a gentle heart, he was a “big care bear” and he was the one who could be counted on, the one who had the answers, the one who took care of his own.

For 22 years, he served as general manager for Cafeteria Alternatives at OSF, where he became a father figure to many.

He was an avid gun collector and enjoyed shooting. He also liked playing video games with friends. He held close a sense of nostalgia for the things his father used to enjoy.

Above all, Adam leaves a legacy of love—one rooted in the lessons he gave by example. He taught his family how to love and be loved, and that gift will remain with them, steady and enduring, in the days ahead.

A celebration of life will be held Sunday, November 8, 2026 from 1:00 to 3:00 p.m. at Davison Fulton Bartonville Chapel.

In lieu of flowers memorials may be made in Adams name to the Children's Hospital of Illinois.