Donald R. Hartdegen

Donald R. Hartdegen

Age 94, of Tempe, AZ, formerly of Lockport, IL passed away peacefully on Sunday, September 6, 2026. Born in La Grange, IL, lived in Lockport, IL for many years before moving to Tempe, AZ. A proud United States Marine Corps Korean War Veteran. Donald was an engineer for International Harvester for many dedicated years; he also worked for Arizona Department of Transportation until retirement.

Preceded in death by his devoted wife, Helen R. Hartdegen (2019); his beloved daughter, Lynda Hartdegen; his parents, William and Elizabeth (nee Orzali) Hartdegen; his brother, Bill Hartdegen and beloved son-in-law Jerry Wheeler.

Survived by his loving children, Janet Hartdegen, Nancy Wheeler, and Donald Jr. (Suzanne) Hartdegen; cherished grandchildren, Joe (Maribeth) Ebert, Melanie, Austin (Amber) Wheeler, Bryan (Hannah) Wheeler, Brenden (Amy) Hartdegen, Matthew, Colleen, and Caroline Hartdegen; his adored great grandchildren, Jakob, Andrew, Ryan, and Morgan Ebert, Noah, Owen, Levi, and Sadie Wheeler, and Cameron Hartdegen; many nephews, nieces, as well as dear friends.

Visitation and Funeral will be held on Monday, September 21, 2026, in the O’Neil Funeral Home Chapel 1105 E. 9th St. Lockport, IL, 60441 from 9:00am until prayers at 10:30am. Mass of Christian Burial following prayers at St. Dennis Catholic Church, Lockport at 11:00am.  Interment following Mass at Resurrection Catholic Cemetery, Romeoville, IL . 

For Info: (815) 838-5010 or www.oneilfuneralhome.com