Mark Bradley Klein

Mark Bradley Klein, 67, of Casper, Wyoming passed away unexpectedly on October 23, 2026.

Mark Klein was born on December 22, 1958, in Milwaukee, Wisconsin. He was a beloved son, brother, husband, father, uncle, and friend whose life was defined by adventure, hard work, generosity, and an unwavering love for his family.

Mark moved to Wyoming around 1970, where he would eventually make Casper his home. His life was full of adventure from an early age. After high school, he traveled to Australia with little more than a tool bag, finding work along the way as he explored the world. From Australia, he continued to Hawaii, where he lived with his uncle for a short time before returning to the mainland. Mark's heart had long belonged to Cindy, whom he began dating in high school. Their love grew through the years, and they married in 1983, building a life together filled with memories, challenges, dreams, and a love that endured. After they married, Mark and Cindy went to Colorado, where he studied solar panel installation before returning to Casper and beginning the next chapter of his life.

Cindy was his partner through every chapter, and together they raised their sons, Matt and Jakob. They also carried the memory of their daughter, Kesha, who passed away shortly after birth and remained forever part of their family.

In 1987, Mark and Cindy moved to Las Vegas, where he put his construction skills to work. In 1996, they moved to Utah to be closer to home, before returning to Casper in 2000. There, Mark started his own business, MC Construction, turning his talent, determination, and strong work ethic into something of his own.

In 2004, Mark and Cindy began building their dream home. For two years, they poured their hearts into creating a place where they could enjoy the life they had worked so hard to build together. Just weeks before they were scheduled to move in, the unimaginable happened: the house burned down. It was a heartbreaking loss, but it was only one chapter in a life that was defined by perseverance, love, and the ability to keep moving forward.

Mark's greatest accomplishments, however, could never be measured in buildings or projects. They were measured in the lives he touched and the people he loved. He never had grandchildren of his own, but that never stopped him from being a grandfather figure to many. He loved showing up for the children in his family and his friends' families, cheering them on and supporting them in all their sporting endeavors. Whether he was in the stands or on the sidelines, his presence was a reminder that they were loved, encouraged, and never alone. Mark never needed a title to love a child as his own, and the many young lives he supported were a testament to how big his heart truly was.

Mark had a boisterous laugh that could fill a room and a generous spirit that will stay with those who knew him forever. He was the kind of person who would give you the shirt off his back, but his generosity went far beyond that. He helped people regardless of where they stood in life, never judging someone by whether they were up or down. He didn't wait for people to ask for help. If he saw a need, he found a way to fill it before the request was ever made. That was simply who Mark was: someone who cared deeply and showed that care through his actions.

Mark loved the outdoors, especially hunting and camping in the Shirley Mountains with friends and family. He treasured the time spent in the mountains, enjoying the beauty of Wyoming, sharing stories, laughing, and making memories with the people he loved. Those outdoor adventures were another reflection of Mark's adventurous spirit and his appreciation for the simple things in life. The memories made in the Shirley Mountains will live on in the hearts of those who shared those special times with him.

Mark also loved spending time at the lake, making many wonderful memories during summers at Pathfinder. Those summers were a special part of his life, filled with the kind of moments that make lasting memories with family and friends. Whether he was enjoying time at the lake, hunting and camping in the mountains, cheering on the kids he loved, traveling to new places, or simply taking in a beautiful view, Mark knew how to appreciate the people and experiences that made life meaningful.

His love of adventure never faded. Even while working and building his business, Mark always made room to appreciate the world around him. If he was driving somewhere and came across a scenic lookout, he would stop to take in the view. He understood that life was about more than reaching a destination; it was also about appreciating the moments along the way.

At the time of his passing, Mark was working on what he considered his last project: building a house for his brother-in-law and wife. He and Cindy were looking forward to retirement, with plans to travel together and explore more of the world. Though those plans remained unfinished, Mark's adventurous spirit, love of travel, and appreciation for life's simple moments will continue to inspire everyone who knew him.

Mark is survived by his beloved wife of 43 years, Cindy; his sons, Matt and Jakob; and his siblings, Todd, Cindy, Patrick, Brian and his wife, Lesa, and Jennifer. He also leaves behind nieces, nephews, extended family, and the many children he embraced as his own through love and support.

He was preceded in death by Gail Brown, Tim Klein, and his beloved daughter, Kesha.

Mark will be remembered for his adventurous heart, his dedication to his craft, his boundless generosity, his love for his family, and the boisterous laugh that will forever echo in the memories of those who loved him. He showed us that family is not only who we are born to, but also who we choose to love, support, and stand beside. His legacy lives on in the homes he built, the lives he helped, the children he cheered for, the summers spent at Pathfinder, the hunting and camping trips in the Shirley Mountains, the places he explored, and the countless memories he leaves behind.

Though he and Cindy may not have made it to the retirement adventures they dreamed of sharing, Mark's spirit will continue to travel with everyone whose life he touched.

He was deeply loved, he will be profoundly missed, and he will never be forgotten.

In lieu of flowers, the family asks that donations be made in Mark’s memory to Special Olympics Wyoming or I-Reach. Your generosity will honor Mark’s loving spirit and his lifelong commitment to supporting and encouraging others. The family appreciates your kindness and support as we celebrate Mark’s life and the lasting impact he made on so many.

An open-house celebration of life will be held on Saturday, October 31st at 10:30 a.m. at The Hangar in Bar Nunn.

Please join us for food, drinks, laughter, and memories as we come together to celebrate Mark's life, share stories, and remember the incredible person he was. We invite everyone whose life Mark touched to gather with us, honor his memory, and celebrate the love, laughter, and lasting memories he leaves behind.

We look forward to sharing this time together as we remember Mark and the many ways he made our lives better.