Mark Kevin Radvonausky, affectionately known as "Rev," age 69, of Portage, passed away peacefully on Sunday, July 26, 2026. He was born on January 25, 1957, in Cook County, Illinois, to the late Harold and Lestie Radvonausky.

On July 7, 1985, Mark married the love of his life, Sherry Payne, at Woodland Park in Portage. Together they shared 41 wonderful years filled with love, laughter, and countless adventures.

Mark was employed as a salesperson for Tackle Haven, an outdoor outfitter in Benton Harbor, Michigan—a fitting career for someone whose greatest passion was the outdoors. An avid fisherman and former hunter, he found his greatest peace surrounded by nature. His knowledge and love of the outdoors earned him recognition in Outdoor Life magazine, where he was featured as a field guide. Mark and Sherry treasured spending time at their sportsman's cabin in Baldwin, Michigan, often slipping away together to enjoy the quiet beauty of the woods and the simple pleasures of nature. Whether casting a line, sharing stories around a fire, or simply enjoying the outdoors, those moments were among his happiest.

Mark will be remembered for his genuine love for spending time with the people he cared about. He especially looked forward to his lunch outings with his daughter, Shannon, and enjoyed taking trips to the casino with his beloved wife, Sherry, where they shared many laughs and made cherished memories together. Mark found joy in life's simple moments. His warmth, sense of humor, and love for the outdoors will be remembered by all who were fortunate enough to know him, and his legacy will live on in the many lives he touched.

Mark will be dearly missed by his beloved wife, Sherry Radvonausky; his children, Kevin (Shelly) Radvonausky, Shannon Blinco, and David (Becca) Little; his grandchildren, Drake Radvonausky, Aiden Radvonausky, Kaela (Zach) Duncan, Brianne (Joe) Little, and Brendan Little; and his very special friends, Don and Lorraine Witkus.

He was preceded in death by his parents, Harold and Lestie Radvonausky, and by his parents-in-law, Betty and Kenneth Payne.

Memorial visitation for Mark will be held on Saturday, August 8, 2026, from 2:00 p.m. until 6:00 p.m. at Rees Funeral Home, Olson Chapel, 5341 Central Avenue, Portage. A memorial service will begin at 6:00 p.m. at the funeral home. For more information, please call (219) 762-3013. Online condolences may be shared with the family at www.reesfuneralhomes.com.