Dennis (Denny) James Hollister, 83, passed away peacefully in Leavenworth early in the morning on November 2, 2026. Dennis was born in Glen Cove, NY, and raised in New London, CT. 

He attended the University of Connecticut where he met Susan Soracchi, and they married in 1964. Upon graduation, Denny was commissioned as a 2nd Lieutenant in the Army. Shortly before he deployed to Vietnam, Susan gave birth to their first son, Don. Denny was proud of his Vietnam service in the 25th Infantry Division as an armor company platoon leader and executive officer. During his stateside service, Susan and Dennis welcomed their second son, Eric. Following his military service, Denny spent most of his professional career working as a postal inspector in Minneapolis.  

One of Denny’s passions was actively caring for the various animals that would visit their family home. Through patience and perseverance, all creatures great and small grew to trust him. He ensured that the woodchucks, squirrels, deer, rabbits, birds, and even a feral cat had a safe sanctuary and food in the summer and winter; however, he disliked turkeys.  

Denny greatly enjoyed spending time with his grandchildren, teaching them about the Constitution and sharing his patriotism. He also ensured that his conversation was full of laughter; his multiple memorable bits continued even to the end of his life. 

Denny is survived by his wife, Susan, his sons, Don and Eric, their wives, Sue and Carrie, and his grandchildren: Samantha, Nat, James, Sophie, and Rebecca. He will be greatly missed by his family who will always cherish the laughter, love, and joy that he brought to their lives.