James (Jim) Donald Gronau of Newton, Kansas passed away peacefully on May 17, 2023 at Halstead Health & Rehab in Halstead, Kansas at the age of 82. James was born on March 30, 1941 in Newton, Kansas to A.M. and Agnes (Endres) Gronau. He attended Newton High School where he met and courted the love of his life, Dennes (Dennie) Rae Grant. They were married June 18, 1960 in Newton, Kansas for 63 wonderful, exciting, sometimes crazy years. A lifelong resident of Newton, Jim owned and operated various businesses in the area prior to retirement, including: Gronau Lumber & Welding where he designed and produced cattle and hog equipment, and ran one of the few sawmills in the state. Big Jim’s BBQ, where Jim affectionately earned the moniker “Big Jim” and a legion of customers and BBQ fanatics who would follow him anywhere to get his world-class BBQ. Jim was also known for his antique “creations” that were displayed in the many antique mall booths they operated. Jim had the ability to take an old, broken, throw-away object and turn it into a sought-after work of art. Survivors include wife Dennie of Newton. Children - Gary Gronau (Sheri) of Newton; Larry Gronau (Brenda) of Newton; Geri Schroeder (Mark) of Walton.