John was the beloved husband of Susan Sedlak (née Dvoroznak), with whom he shared 40 years of marriage. Together, they built a life centered on love, family, and countless cherished memories.
He was the loving father of Rachael Sedlak (Ian Maurer) and Rebecca Sedlak-Cotter (Michael Cotter). He was the cherished grandpa aka “DayMan” of Maxine Cotter, who brought him endless joy and pride.
John was preceded in death by his parents, John and Alberta (Walter) Sedlak. He was the dearest brother of Lori Jackson (Tim), James Sedlak (Bonnie), and Linda Snodgrass (Jim). He was also a cherished uncle and great uncle to many nieces and nephews.
A retired mechanic with the United States Postal Service, John was known for his hard work, dedication, and willingness to help others. He found joy in the simple things — spending time with family, watching thunderstorms roll in, and enjoying his Lionel trains. Above all, he was a devoted husband, father, grandfather, brother, uncle, and friend whose presence will be deeply missed by all who knew and loved him.
In lieu of flowers, contributions are suggested to Blood Cancer United, Attn: Donor Services, PO Box 22324, New York, NY 10087.
Family and friends are invited to gather on Thursday, May 21, 2026, from 3:00 to 7:00 p.m. at A. Ripepi & Sons Funeral Home. A funeral service celebrating John’s life will be held at 7:00 p.m. at the funeral home.