James Robert Kostroski Obituary

With solemn hearts, we announce the passing of James Robert Kostroski of Mosinee, Wisconsin, whose presence will be deeply missed, having departed on September 11, 2025 at the age of 84. Family and friends are welcome to send flowers or leave their condolences on this memorial page and share them with the family.

He was predeceased by: his parents, Ben Kostroski and Josephine Kostroski (Tuszkowski); his wife Connie; and his siblings, Marvin, Janice and JoAnne.

He is survived by: his son Keith Kostroski; and his siblings, Bernie (Gordie), LeRoy, Rita (Gary), Mary (Eugene), Donna (Al) and Debbie. He is also survived by many nieces and nephews.

Funeral arrangement under the care of
Beste Funeral Home

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Events

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Fri

Sep 19

Visitation

St. Paul Catholic Church
603 4th St, Mosinee, WI 54455

Fri

Sep 19

Mass

St. Paul Catholic Church
603 4th St, Mosinee, WI 54455

Fri

Sep 19

Burial

Restlawn Memorial Park
235962 N Troy St, Wausau, WI 54403

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