Jeffrey Raymond Posselt, age 68, completed his work on earth and entered the company of saints on Thursday, December 25, 2025, surrounded by his loving family. Jeff was born on December 29, 1956, in Neenah to Raymond and Loma Jean (Laabs) Posselt, one of nine children. He graduated from Winneconne High School in 1975 and went to Fox Valley Tech for welding. He married Becky Wittmann on April 23, 1983. He was proud to be a dairy farmer on what is now the sixth generation Posselt family farm, “Maple Acres.”

In addition to a lifetime of farming, Jeff was an active member of the Greenville Co-Op Board and also on the Town of Clayton Board (and was locally known as the “Mayor of the Marsh”). In his younger years, Jeff enjoyed bowling and deer hunting. When not farming, Jeff loved to eat ice cream, watch farming videos on YouTube, playing with or facetiming his grandkids, going to brunch at Oinks, and family breakfast after chores on Saturdays.

Jeff is survived by his wife Becky; by his children, Lydia (Josh), Todd (Nicole), Tony, and Katie; by his grandchildren, Geneva Posselt Keiter, and Allison, Liam, and Callie Posselt. He is also survived by his siblings, Curt (Connie) Posselt, Cathy (Bob) Gottschalk, Judy Green, Joanne (Jim) Steudel, Alice (Mike) Peppler, Cheryl (Jeff) Ryf, Tom (Sheri Jo) Posselt, and Laurie (Jeff) Kroening.

Jeff was preceded in death by his parents, Raymond and Loma Jean Posselt; and brother-in-law, John Green.

A visitation for family and friends will be on Tuesday, December 30, 2025, from 5:30 to 8:00 p.m. at Grace Lutheran Church of Winchester 8396 Steeple Hill Dr. Larsen. Visitation will continue Wednesday, December 31 from 10:00 to 11:30 a.m. at the church. A funeral service will be held on Wednesday at 11:30 a.m. at the church with Pastor Mark Laatsch officiating. Burial will follow in the Grace Lutheran Cemetery.

Our family would like to thank the ICU staff at Theda Clark, especially Dr. Miner, Sarah, Lexy, Hannah, Rachel and Laura and the Town of Clayton First Responders and EMTs, for their care for Jeff and his family during this time.

Mueller Funeral Home-Winneconne is assisting the family. If you wish to submit online condolences/memories, please go to muellerfh.net.