Donald L Mock passed away on Sept 1, 2026 at the age of 93, surrounded by his family. 

Don was born May 7, 1933 in Arrowsmith IL to Margaret (Snook) and Charles Edward Mock. He grew up  as an only child in a farming community. He was drafted into the Army where he served as Staff  Sergeant during the Korean War. 

After the service he worked for the Northern Gas Company where he was a computer programmer and  developed system applications to increase the company’s efficiency. Among many other endeavors, he  also owned his own Real Estate Agency and continued to work until he was 90 years old.  

He married the love of his life Mary Janet, in Sept of 1988 and together they enjoyed traveling and  spending time with family and friends. Don was passionate about boating and owned several cabin  cruisers throughout his life.  

Don is survived by his wife Mary Janet and his three step-daughters Laura (Tom-deceased), Suzanne  (Craig) and Julie (Bob) and his 10 grandchildren Nichole (Mike), Andrew (Naomi), Aaron (Alisha) Bryan  (Grace), Jessica (Matt), Zac (Evonne), Alexander (Brittany) Mark (Kelly), Eric and Danielle. He is also  survived by his 18 great-grandchildren. 

Don was loved by all who knew him, he had a wonderful sense of humor, he always had a great story to  tell and will be deeply missed. 

A visitation will be held on Saturday September 26, 2026 from 10am to 2:30pm at Adolf & Powell Funeral Home, 7000 S Madison St, Willowbrook, IL 60527 with a prayer service and military honors at 10:30am.