James Nicholas Duffman Jr, born in Fort Leavenworth July 31, 1954, passed peacefully in his sleep at his home in Knob Noster Tuesday April 21, 2026.

He is survived by his daughters and their spouses; Susan Zacarias (Mele), Donna Schaardt (James), Jamie Rode (Matthew), his grandchildren; Chance Duffman, Austin Schaardt, Cisco Zacarias, Kaila Stradford (CJ), Ethan Duffman-Rode, and Tyler Duffman-Rode, great granddaughter; Magnolia Stradford, brother Jerry Duffman (Trudy), sister, Denise Benavides (Mike), and extended family, friends and in-laws.

He is preceded in death by his wife of 39 years Nina (nee Heenan), parents James Sr and Norma (nee Harshfield), and siblings Beth Griddine, Carl, and Keith.

In life, James retired from the United States Air Force as a SMSgt after serving 25 years. After retirement he completed his college education and worked 10 years at a youth home before retiring a second time.

James was a lifelong fan of the KC Chiefs and Royals.

He traveled the world through his active service and enjoyed sharing his experiences and memories with family and friends.

Jim truly loved being a grandfather. He treasured his grandkids, each one holding a special place in his heart.

Chance; firstborn grandson, long standing caregiver, and last housemate.

Austin, his own little Star Wars enthusiast and constant pop-in visitor and conversationalist.

Cisco, the first college graduate grandkid and first truly enamored partner in love with professional sports.

Kaila, the one and only granddaughter, and movie buddy, especially Harry Potter marathons.

Ethan, for being his own personal pro bowler as a collegiate athlete and adding in another professional sports fanatic.

Tyler, the youngest grandson, his tiny partner in crime that looked up to him and followed him everywhere.

Magnolia, first great-grandchild, the time was not long, but this new addition was spectacular and beautiful for him.

James, known by many as; Jim, Jimmy, G-Pa, grandpa, great grandpapa, dad, pop, gramps, daddio, old-man, a daughters first love, was our true hero.

The love and memories we cherish are far and wide.

We love you; we miss you.

Thank you for everything you gave us while we had you in our lives.

We will all hold you dearly in our hearts forever and always.

A visitation will be held on Saturday, July 25, 2026, from 1:00 p.m. to 2:00 p.m. at Sweeney-Phillips & Holdren Funeral Home with a celebration of life and military honors to follow.