10/23/2025
PORTAGE, WI / VALE, NC – Mark K. Christensen, age 55, passed away peacefully on Monday, October 20, 2025, at the ranch, doing what he loved.
Mark, better known as “Frog” to his Wisconsin family, was born on August 25, 1970, in Baraboo, Wisconsin, the son of Dale Christensen and Michelle Metcalf. He was a 1988 graduate of Portage High School and later obtained a bachelor’s degree in education at UW-Stevens Point. On June 10, 2000, Mark married his beautiful wife, Jenny Underkofler, who was truly his soulmate. On August 25, 2002, his son, Riley Christensen, was born, followed by his daughter, Maddie Christensen, on August 30, 2004.
Mark was a lover of life and all things that came with it. He loved the Green Bay Packers, hunting deer and pheasants, fishing, nicknames, the ranch, his morning coffee (with plenty of whipped cream, always making sure to share a squirt of it with his dogs), his animals, hockey, Christmas gnomes, and early mornings. Mark was a simple man who built the exact life he wanted. His dream was always to live on land, far out in the country with lots and lots of animals, surrounded by those he loved - and he got that wish. Mark was happiest when living out that dream on his beautiful farm with his beloved donkeys, dogs, chickens, wife, and children.
For a lack of better words, Mark was an absolute badass of a human being who was a friend to all. He exemplified passion, commitment, loyalty, resilience, kindness, encouragement, dedication, and generosity. He was known for being a big teddy bear with a sense of humor that was impossible not to appreciate. Above all, Mark was truly the best husband and father. He poured his heart and soul into his wife and children, making sure that he never missed a single milestone or moment. He spent his weekends either coaching his daughter’s softball team or serving as a boat captain for his son’s fishing team. He left a lasting impact on not just his own children, but their friends and teammates as well. His consistent presence, love, and admiration for those he loved should serve as an inspiration to us all.
Mark is survived by his wife, Jenny “Bugsy” Christensen; children, Riley “Bob” and Maddie “Beavis” Christensen; father, Dale (Mari) Christensen; mother, Michelle Metcalf, grandmother; Delilas Christensen; sister, Dawn (Mark) Jacobson; mother-in-law, Mary Underkofler; brother and sister-in-law, Becky (Chris) Kopfhamer; nieces, Sydney Kopfhamer and Kristina Kanitz; nephew, Ethan Kopfhamer; many cherished aunts, uncles, friends, and other relatives. He was preceded in death by his grandfathers, Chuck Metcalf and Alan Christensen; grandmother, Loretta Metcalf; father-in-law, Mike Underkofler.
A special thank you to Mark and Lukas Paske and numerous other cherished family and friends who stayed by our beloved Mark’s side through it all.
While this loss is beyond devastating and heartbreaking, Mark was a believer in celebrating life. His wish would be for those that he loved to lean on one another and laugh over their favorite memories, stories, or moments of him - there are so many beautiful ones to reminisce on. So, in honor of our beloved Mark, we ask that you crack open a beer (or a Diet Mountain Dew) and remember him as the humorous, joyful, and fun-loving guy that we all knew him to be.
In lieu of flowers, please forward donations to the family to be used for a future memorial in Mark’s memory.
Mark, you are loved and missed more than you know. You left behind one hell of a legacy and our promise to you is to make sure that you live on through everyone that loves you. Thank you for being a stand-up husband, father, son, brother, nephew, cousin, and friend. Cheers to you.
Pflanz Mendrala Funeral Home, in Portage, is assisting the family.