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Jack Lee Sines, Jr., of DeWitt, passed away on January 20, 2026, surrounded by his loving family at the age of 65. Jack was born in Lansing, on December 17, 1960, to Jack and Lavonne (Anthony) Sines, Sr. Jack was a proud graduate of Central Montcalm High School. His greatest joy in life was his family. Jack especially loved playing with his grandkids. Jack married his beloved wife, Michelle (Lovro) Sines and they spent 26 years together. He will be missed by all who knew him.
Preceding Jack in death are his mother, Lavonne Sines; brother, Patrick Sines; and grandparents, William and Doris Sines and Lawrence and Margaret Anthony. Left to cherish his memory are his father, Jack Sines, Sr. wife, Michelle Sines; daughter, Amanda (Bradley) Zischke; son Tom (Rhonda) Greer; brother, Abe (Connie) Sines; sister, Brenda (Eric) Keson; grandchildren: Amelia, Memphis, Rowan, Payton, Lillian, Isabelle, Eleanor, Lyndon, and Chloe.
The Celebration of Life service honoring Jack will be held at 11:30 a.m., Saturday, January 31, 2026 at the Portland Church of the Nazarene. Arrangements are entrusted to Lehman Funeral Homes. Online condolences may be made at www.lehmanfuneralhomes.com.
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