Jeffery "Firebug" "Juff" W. Mann, age 47, of New Holstein, passed away unexpectedly in his home on Wednesday, December 9, 2015. He was born on January 24, 1968 in Waupun, WI to Alvin J. Mann and to the late Judy M. (Fischer) Mann. He married Tammy J. Freund on July 17, 1993 at St. Mary's Catholic Church in Marytown. He was employed at Lunda Construction of Black River Falls, WI for over 15 years building bridges. Jeffery was a member of Local Union 330 of Menasha. He is survived by his wife, Tammy of New Holstein, WI; two sons, William (Jessica) Mann of Van Dyne, WI, Lucas Mann of New Holstein, WI; a grandson, Aiden Mann of Van Dyne, WI; his father, Alvin Mann of Brandon, WI; and three brothers, Mark (Glenda) Mann of Hot Springs, AR, Chad (Jackie) Mann of Ripon, WI, Shannon "Sam" (Kathy) Mann of Lake Linden, MI. He is further survived by in-laws, Wally & Ginger Freund of Marytown, WI; sister-in-law, Shannon (Mike) Freund of Kiel, WI; brother-in-law, Sean Freund of Marytown, WI and many other relatives and friends. He is preceded in death by his mother, Judy Mann and by paternal and maternal grandparents. Liturgy of the word will be held at 7:00 PM Monday, December 14, 2015 at the Sippel Funeral Home 2618 Altona Ave. New Holstein, WI 53061. Rev. Gary Wegner, OFM Cap will officiate. Cremation will follow services. Family and friends may greet the family at the Sippel Funeral Home on Monday, December 14, 2015 from 3:00 PM – 7:00 PM. For additional information, please contact the Sippel Funeral Home in New Holstein (920) 898-4300 or visit www.sippelfuneralhome.net