John "Jack" Leffelman

John “Jack” Leffelman, age 64 of Amboy, passed away on March 14, 2026, at OSF St. Katharine Hospital in Dixon. Born on October 24, 1961, in Dixon, Illinois, he was the son of Eugene “Gene” and JoAnn (Friel) Leffelman.

Jack spent many years as an independent owner and operator of a trucking company and most recently drove for Martin and Company, with plans to retire this fall. A lifetime member of the Green River Saddle Club and a member of Teamsters Local 722, he grew up riding horses and cherished his time on the trails. Some of his happiest memories were spent camping and riding with his friends and daughters. He was an incredibly proud father who loved his girls deeply. In recent years he witnessed his oldest daughter receive her doctorate and walked his youngest daughter down the aisle to marry the love of her life. His greatest joy, however, was being “Papa Jack.” His grandchildren adored him as much as he adored them, and he would drop everything to be there for his grandbabies.

In later years Jack traded his saddle for his beloved side-by-side “Precious,” enjoying rides with friends. He was also a familiar and well-loved patron of The Last Alarm, where he shared many good times with people who mattered deeply to him.

He was preceded in death by his parents and his brother, Doug Leffelman. Jack is survived by his children Emily (Lucas) Zimmerman of Amboy and Kelsey (Juan) Cintron of Dixon; five grandchildren, Kaylee Zimmerman, Clayton Zimmerman, Elana Cintron, Kennedi Cintron, and Bree Ann Cintron; his loving companion Barb Harrison; partner in crime Joe Dewey; siblings Denise (Ken) Sexton of Sterling, Tom (Teresa) Leffelman of Mendota, Regina (Don) Poquette of Bartlesville, Oklahoma, and sister-in-law Kim Leffelman of Island Lake, Illinois; and many nieces, nephews, cousins, aunts, and uncles.