ermined effort to clear the water hazard and land the ball safely on the green. He enjoyed tennis and swimming, was a master of Legos, and enjoyed fishing in the beautiful lakes of northern Wisconsin. Jack was a cheese connoisseur, who delighted in trying all varieties of cheeses and was often known as Cheddar Jack by all who knew his love of cheese. As an avid Packer fan, he enjoyed both watching and attending games and was befriended by Packer quarterback Aaron Rodgers. As in all activities, he was happiest doing his best and being exactly who he was, no pretenses, just resounding honest to goodness joy of life. Jack will be deeply missed by his devoted family. Precious son of Sarah and John K. Bartosz. Loving brother of his twin sister Annie. Cherished grandson of Julie and Andy Detling and John W. Bartosz and the late Carolyn Bartosz. Adored nephew of Katie Detling, Chris and Robynn Bartosz, and David Bartosz. Playful cousin to Alex and Abby Bartosz. He will be dearly missed by a multitude of friends, as well as those he met from all over the country, including many nurses and doctors who loved him and cared earnestly for his health and welfare while he cared about keeping them entertained and laughing even when marching bravely into a surgical procedure, treatment protocol or clinical trial. Jack has left a legacy of sensitivity and compassion that was wise beyond his years and will continue to inspire good works and much laughter for all who knew and loved this wonderful soul that is and will always be Jack. His philosophy was simple and pure: "People, you just gotta believe. Be happy."The family asks that memorial gifts be given to the I Back Jack Foundation to fund research for pediatric cancers. Memorials may be sent to I Back Jack Foundation, P.O. Box 41, Hartland, WI 53029 or online at www.ibackjack.orgA celebration of Jack's life will take place at 5:00 P.M. on September 22, 2012, at Westbrook Church, 1100 State Highway 83, Hartland, WI, 53029. "People know me for my happiness. I don't want people to think of me for sadness." ~ Jack . . . you have made the world a happier, more hopeful place and will be forever with us.