Leon Joseph Demerath

Leon Joseph Demerath obituary, South Lyon, MI

Leon Joseph Demerath

Leon Demerath Obituary

Obituary published on Legacy.com by Frazer Cremations & Funerals - South Lyon on Jan. 4, 2026.
Leon Joseph Demerath, 94, formerly of Mt. Pleasant. MI passed away on January 2, 2026, at Evangelical Home of Saline in Saline, MI. He was born January 11, 1931, in Little Chute, WI, son of the late Frank and Anna (Koestler) Demerath. He married Rosalee Finnegan on October 2, 1954, at St. Mary Catholic Church in Appleton, Wisconsin. Leon was a truck driver and also sold insurance. He was a Rotarian and a lifelong member of the Knights of Columbus. In 1973 he moved with his family from Green Bay, WI to Mt. Pleasant, MI. Some of his favorite pastimes were traveling, calling bingo for the Knights of Columbus and doing puzzles.
He was preceded in death by his wife Rosalee (Finnegan), son, Patrick, and five brothers: Francis, Joseph, Michael, Peter and Albert; and six sisters: Edith, Rita, Mary, Ann, Theresa and Gloria. Leon is survived by five children Margaret (Randy) Bellinger of Dayton, OH, Dennis (Susan) Demerath of Shepherd, MI, Nancy (Stephen) Young of Hurst, TX, John (Kathy) Demerath of Tecumseh, MI, and Matthew (Graciela) Demerath of Dexter, MI; daughter-in-law, Patricia Demerath of Oswego, IL. He is also survived by his sister Elizabeth (David) Maas of Appleton, WI and 14 grandchildren: Hanna, Jessica, Eric, Emily, Lauren, Jacqueline, Grace, Christine, Rachel, Andrew, Broderick, Corbin, Pablo, and Dante; great grandsons: Levi, Leo, Finnegan, Noah and Levi Patrick, and greatgranddaughters: Zoey, Rosalee, Isla, Abigail and Elaina.
A Funeral Mass for Leon will be held on Saturday, January 10, 2026, 11:00 am, at St. Joseph Catholic Church 6805 Mast Road, Dexter, MI 48130, with a luncheon to follow.
Leon will be interred in St. Mary's Cemetery in Kaukauna, WI. In lieu of flowers donations may be made to Arbor Hospice.
To send flowers to the family or plant a tree in memory of Leon, please visit our floral store.

To plant trees in memory, please visit the Sympathy Store.

Sign Leon Demerath's Guest Book

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January 7, 2026

Ellen Montoya posted to the memorial.

January 7, 2026

Jeannette Haber posted to the memorial.

January 6, 2026

Bill Blake posted to the memorial.

4 Entries

Ellen Montoya

January 7, 2026

We have been friends of Matthew's for many years. We were lucky enough to meet Leon and Rosalie many years ago. Both very lovely people. It is sad to see him go, but knowing he is now with Rosalie, lessens the sadness. He was loved much, and he loved much. Peace and love to Matt, Graciela, the boys and the family.
Rick and Ellen Montoya

Jeannette Haber

January 7, 2026

God bless you and your family, Matthew and Graciela, in this time of sorrow. Rest in peace Leon Joseph Demerath.

Bill Blake

January 6, 2026

All our best wishes to my beautiful sister Nancy and her family. As we Aussies say Leon, what a great inning. Thinking with love about you all. Bill, Lynne, Michael , Patty and Roddy Blake and Suzie Mason.

Maru García Lizama

January 4, 2026

Dejar Matthew and Graciela we accompany you in this moments of sorrow and trust that your father is enjoying the Glory of God with love Carlos y Maru

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Frazer Cremations & Funerals - South Lyon

21001 Pontiac Trail, South Lyon, MI 48178

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Sign Leon Demerath's Guest Book

Not sure what to say?

January 7, 2026

Ellen Montoya posted to the memorial.

January 7, 2026

Jeannette Haber posted to the memorial.

January 6, 2026

Bill Blake posted to the memorial.