Barbara J. Tetzlaff

Barbara (Feller) Tetzlaff passed away Saturday, January 10th, 2026. The daughter of Elvira (Conradt) and Harold Feller, she was born March 27, 1941, in Appleton, WI. She graduated from Kaukauna High School in 1959. Barb married John Tetzlaff July 13th, 1963, at Holy Cross Catholic Church. They had three children Lorie, Mark, and Brian. She worked at Kimberly Clark and Fox Valley Tool & Die, Inc. Barb enjoyed golfing, bowling, snowmobiling, playing cards, and spending time with family and friends at their cottage on Crane Lake and their vacation home in Naples, FL. Most of all she loved her husband, children, grandchildren, and great grandchildren.

She was preceded in death by her parents and in-laws, Leland and Viola (Wierschke) Tetzlaff; sisters, Myra Vanevenhoven and Donna Snow, brother John Feller, in-laws: Rob Vanevenhoven, Karen & Lloyd Beyer, Darrel and Linda Tetzlaff, Lois Gonnering, Duane Tetzlaff, and Paul Krueger.

She is survived by her husband John, children Lorie (Ken) Deering, Mark (Trisha) and Brian (Jennifer) Tetzlaff; grandchildren, John (Abby) Raye, Jennifer (Anthony) Fusco, Jerry and Christopher (fiancée Heather) Deering, Elizabeth and Emily Tetzlaff and Eliana (Gabe) DeCasas, Haileigh, Kaitlyn, Thomas, Taylor and Luke Tetzlaff; great grandchildren, Nathan, Lainey, Noah and Parker Raye, Matthew and Weston Fusco and Theodore and Elias Deering. She is further survived by her brother Gary (Diane) Feller; in-laws, Giovanna Feller, Elaine Krueger, Alan (Sue) Tetzlaff, Audrey (Cliff) Greenslade, Lynda Tetzlaff, Gary (Karen) Tetzlaff, Glenn Tetzlaff; her Godchildren, Keith Vanevenhoven, Sheila Snow, Gregg Greenslade, Terrance Tetzlaff; and many nieces and nephews.

Deepest gratitude to her caregivers, Lily Ann, Britany, and Aubrey, for the kindness and compassion they showed while caring for Barb. Their gentle presence brought comfort during a difficult time. Profound thanks to Dr. Culligan, Kathy, and Diana for always being there. Barb truly cherished her visits. To all the staff at St. Elizabeth’s Hospital and Hospice Care, thank you for your exceptional care, unwavering support, and for giving us the precious gift of time. Your thoughtfulness will never be forgotten.

There will be a wake on Sunday January 18, 2026, from 4pm – 6pm with a prayer service starting at 6 at Holy Cross Catholic Church 309 Desnoyer St, Kaukauna WI 54130. Service will be at Holy Cross on Monday January 19, 2026. Visitation will be from 9am – 11am with a Mass starting at 11. at Holy Cross Catholic Church.

In lieu of flowers, please make a donation to a charity of your choice.