Darwin L. Terkleson, 79, of Aledo, left us peacefully on Friday, December 19, 2025, at his home surrounded by his family.

He was born on March 2, 1946, in South Bend, Indiana, the son of Marvin and Jaqueline Hartman Terkleson, Darwin spent his life devoted to his family and his work, proudly serving as a Lieutenant with the State of Illinois Department of Corrections in East Moline.

Darwin's life journey took him from South Bend, Indiana to Aledo, Illinois, where he created a life filled with love, laughter, and cherished memories. He is survived by two sons, Bradley and Brian Terkleson; step-children, David (Esther) Bysinger and Sasi (Barton) Rodriguez, all of Aledo and Tiowa (Wendy) Butenschoen of Toronto, Canada; grandchildren, Poe Reichow,, Eleanor Terkleson, Regan J. Terkleson and Lily Terkleson; step-grandchildren, David (Jessie) Bysinger, Derrick Bysinger, Devon Bysinger, B.J. Rodriguez and Nathaniel Rodriguez; and step-great grandchildren, Aaliyah Bysinger, Kaden Smet, Harper, Jensen, Cambria and Tayvia Bysinger.

Darwin was preceded in death by his parents, and wife, Deborah Terkleson.

There were few things Darwin enjoyed more than hunting and fishing. His sense of humor and zest for life will forever be etched in the hearts of those who loved him.

Cremation rites will be accorded. No public services are planned at this time.

Nichols Bewley Funeral Home and Cremation Services is caring for Darwin's family and arrangements.