James Robert Kostroski
(84 years old)
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.
Visitation will be held on Friday, September 19th 2025 from 9:30 AM to 10:30 AM at the St. Paul Catholic Church (603 4th St, Mosinee, WI 54455). A Mass will be held on Friday, September 19th 2025 from 10:30 AM to 11:30 AM at the same location. A burial will be held on Friday, September 19th 2025 from 12:00 PM to 12:30 PM at the Restlawn Memorial Park (235962 N Troy St, Wausau, WI 54403).