Cover photo for Dennis Lee Thierbach's Obituary
Dennis Lee Thierbach Profile Photo
1941 Dennis 2023

Dennis Lee Thierbach

June 21, 1941 — April 8, 2023


Dennis L. Thierbach, 81, passed away Saturday, April 8, 2023, at Aspirus Hospice House in Wausau.

Dennis was born on June 21, 1941, the son of the late Herbert Thierbach and Florence (Krancki) Renna. He married Marilyn Konkol on Sept. 15, 1962, in Milwaukee. She survives.

Dennis was a graduate of Central High School in West Allis. He served in the U.S. Coast Guard for over 20 years in the Reserves as a Senior Chief. He was a Milwaukee motorcycle Police officer for 32 years, retiring in 1994. Dennis was a lifetime member of Indianhead golf course in Mosinee. He enjoyed golf, tennis, fishing, hunting, bee keeping, running an apple orchard, painting and wood carving. He was also a Fox news and Fox business enthusiast.

Survivors, besides his Wife for over 60 years, Marilyn, include daughter, Debra (Patrick) Herolt; two grandchildren, Kassandra and Ryan Herolt; brother, Terry (Carol) Thierbach; sisters-in-law, Judy Janssen, Dianne (Dick) Jones, Katherine (Joe) Lesak; brothers-in-law, Joe (Kay) Konkol, Roman (Sue) Konkol, and Charles (Jackie) Konkol; and many nieces and nephews. He was preceded in death by his parents, Stepfather, George Renna; son in-law, Greg Schultz; In-laws, Katherine and Raymond Konkol;  brothers in-law, Raymond Konkol and Dennis Janssen.

Services will be held at 11:00 am, Saturday, April 22, 2023, at St. Francis Xavier Catholic Church, Knowlton. The Rev. James Trempe will officiate. Visitation will be Saturday from 9:00 a.m. until the time of service, all at the church.  Beste Funeral Home, Mosinee, is proudly entrusted with service arrangements.  Online condolences can be directed to the family at

The family would like to thank the doctors and staff at Aspirus Cancer Clinic and Aspirus Hospice House for their excellent care and compassion for Dennis’s last weeks here on earth.

In lieu of flowers, donations in Dennis’s name can be directed to the Tunnel to Towers Foundation.

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

Service Schedule

Past Services

Memorial Service

Saturday, April 22, 2023

9:00 - 11:00 am (Central time)

St. Francis Xavier Catholic Church

150051 Mead Ln, Mosinee, WI 54455

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