Cover for Dennis Ammermann's Obituary
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Dennis Ammermann

August 8, 1946 — December 20, 2025

Montevideo

Dennis Ammermann of Montevideo died on Saturday, December 20th, 2025 at Luther Haven Nursing Home at the age of 79.

Memorial services will be held at 11:00AM on Monday, December 29, 2025 at Cornerstone Baptist Church in Montevideo. Burial will be in Bunde Reformed Cemetery.

Visitation with the family will be from 2 pm to 4 pm on Sunday, December 28, 2025 at Anderson-TeBeest Funeral Home in Montevideo with a prayer service to begin at 3:30PM. Visitation will continue one hour prior to the services at the church on Monday.

Dennis Alan Ammermann was born on August 8, 1946 in Montevideo, MN to William G. and Anna M. (Schwitters) Ammermann. He was baptized at Bunde Christian Reformed Church. He graduated from Clara City High School, then attended Diesel Mechanic Trade School in Fargo, ND. He served as a Field Wireman in the Minnesota National Guard for 7 years. Denny also enjoyed farming with his father as a young man.

On October 8, 1983 he was united in marriage to Nancy Ann Sulflow at Trinity of Havelock Lutheran Church. They moved to Sabin, MN for 7 years while he worked as a truck mechanic and truck dispatcher in Fargo. They returned to the family homestead and became active members of the Willmar Assembly of God church.

Driving truck was his love for over 55 years, putting on over 4 million miles. He loved driving across the country, enjoying the scenery, always looking for new adventures to take his family on. He had nearly the whole country mapped in his head, and was often called by family to navigate from a distance. Many wonderful memories were made on family trips. His passions included trucks, trains, tractors, and cars. He was a walking encyclopedia of makes, models, and history. He collected model trucks and tractors, which he proudly displayed at home. He liked to fix and tinker, helping many with his skills.

Denny loved to socialize, telling stories, jokes, and teasing everyone he met. He was involved in the Friesen Historical Society, Gideon’s International, and helped lead a weekly Bible study at the local jail, actively mentoring young men. Church involvement was always a priority, and after moving to Montevideo he was active at Cornerstone Baptist Church.

Dennis is survived by his wife, Nancy; three children Crystal (and Reed) Schneider of Ramsey, MN, Travis Ammermann of St. Regis, MT, and Daniel Ammermann of Minneapolis, MN; Grandchildren Ezra, Avram, Norah, and Nala; sister and brother-in-law, Carol Jo and Wesley Meyer, sister-in-law Mary Ammermann, and numerous nieces and nephews.

He was preceded in death by his parents William G. and Anna M. Ammermann, and his brother Gerald Ammermann: brothers- in-law: Robert, Donald, and Wayne Sulflow.

To order memorial trees or send flowers to the family in memory of Dennis Ammermann, please visit our flower store.

Service Schedule

Upcoming Services

Visitation

Sunday, December 28, 2025

2:00 - 4:00 pm (Central time)

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Anderson-TeBeest Funeral Home of Montevideo

629 North 3rd St.
Montevideo, MN 56265

*Standard text messaging rates apply.

Prayer Service

Sunday, December 28, 2025

Starts at 3:30 pm (Central time)

Add to Calendar

Anderson-TeBeest Funeral Home of Montevideo

629 North 3rd St.
Montevideo, MN 56265

*Standard text messaging rates apply.

Memorial Service

Monday, December 29, 2025

Starts at 11:00 am (Central time)

Add to Calendar

*Standard text messaging rates apply.

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