Jeff Treat
January 19, 1960 - May 15, 2022

Jeffrey R. Treat, 62, better known as “Jeff’” climbed the stairway to Heaven on Sunday, May 15, 2022 after a brief battle with cancer. Born January 19, 1960 in Chicago, IL, he was the loving husband to Diana Eder Treat and the son of Harriette Rosenow Treat and the late Robert Treat. He was a lifelong resident of Adams, WI. After graduating high school, he went on to proudly serve our country in the United States Army and National Guard for 13 years. Jeff spent his career as a Machinery Mechanic, mostly known for working at Camp Douglas, the Broilermaker Union Number 107 and West Rock. He was a very talented guitarist who could play any song by ear.

Jeff was a man with a heart for helping others, he dedicated his life to serving our country and his community. His love for music and kids were brought together through his volunteering and raising money for A-F BAND Aid, a program to support the local band. Our military was near and dear to his heart, he donated goods and volunteered years of service for veteran causes such as “Red Friday” which is a program to Remember Everyone Deployed. He also helped establish the first Fire Department in Strongs Prairie, WI and served as a volunteer firefighter.

In addition to his wife and mother, he is survived by his children, Tammy Rodriguez (James) of NC, Danielle Treat of WI, and Tyler Treat of AZ; sister, Jennifer Treat Anderson (Bob) of WI; brother, Mark Treat (Kim) of MN; grandchildren, Sandra, Conner and Corbin; niece, Krista Krizan (Ryan) of WI and Heather Clervi (Michael) of TX; nephews, Matthew Knupp of WI and Brad Treat (Kristina) of MN; and by many great-nieces and great-nephews.

In addition to his father, he was preceded in death by his first wife, Sandra Treat.

A memorial service will be held in his home town at a later date and announced by the family.

To know Jeff is to know how much he loved spending time with his family, especially his grandkids. He embraced and loved everyone in his life. He is well known for a life served well. He will be greatly missed by all who loved and knew him.

For online condolences or to share a memory, please visit

Coastal Cremation and Funeral Care of Jacksonville


  • David Smith Posted May 19, 2022 7:52 pm

    Jeff was a Great Human Being with a Heart of Gold. His generosity was beyond anything you could want in a Friend. Jeff was our Army Brother and a very good Friend that will be missed tremendously. His wife Diana and his Children will be in Our Thoughts and prayers. We will see you again my Brother on the other side.

  • Shanna Cote Posted May 19, 2022 9:08 pm

    Jeff was a great father, grandpa, and friend. He will be missed by many. May you find serenity in your memories and confidence he left you with.

  • Mary Posted May 19, 2022 9:17 pm

    I’ve only known Jeff for a few years now, but he was such a sweet and caring man. He always thought of others before himself. With Jeff and Diana, my husband and I have found family. Rest well, my friend. When we all reunite one day, the reunion will be grand!!! Sending loving thoughts and healing prayers to those who are mourning his loss.

  • Jodi Lecy Helgeson Posted May 19, 2022 9:35 pm

    Treat family, so sorry to hear about Jeff. He always had a smile and a Hello when he saw you no matter how long in between. My condolences to the family.

  • Judy Langley Posted May 19, 2022 11:15 pm

    Jeff was a dear friend whom I loved and I thought of him as my little brother. He was a valued and loved member of our Army Non Commissioned Officer Group. May God grant peace and comfort to Diana and Jeff’s family during the difficult days ahead. Rest In Peace my warrior friend. We will take it from here. Slow salute.

  • Randy Knudsen Posted May 20, 2022 9:42 am

    Jeff was a great friend,He is my brother,He will be dearly missed but never forgotten RIP my brother your duty is done. Rest in Gods grace till we meet again.

  • Ginny Newsom-Batie Posted May 22, 2022 10:06 pm

    Sending my deepest condolences to Jeff’s family -he has left an imprint on my heart that brings a smile to me every time I think of him-I have many fond memories of Jeff growing up together in Arkdale and though we did not keep in close contact I always looked forward to seeing him at our class reunions-RIP my friend until we meet again❤️

  • James Vargo Posted May 23, 2022 8:12 pm

    I only met you once but we spoke many times on the phone I’m going to miss you my brother hooah RIP my brother slow salute

  • Teresa Williams Posted May 24, 2022 7:02 pm

    Harriette, Jennifer, Mark and families
    I’m so very sorry for your loss. Larry often spoke of Jeff and now they are together again and both at peace. My prayers are with you.

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