Marshall R. Kostuch age 83, of Porterfield, passed away peacefully on Friday October 16, 2026, at Meadow Brook in Oconto Falls. Marshall was born on September 24, 1943, in Wabeno, Wisconsin. He graduated from Crivitz High School in 1961. That same year, he enlisted in the United States Army, proudly serving his country until his honorable discharge in 1965. On October 28, 1967, Marshall was united in marriage to Darlene “DeeDee” Zorn at St. Mary’s Catholic Church in Crivitz. The couple shared over 53 years of marriage before DeeDee’s passing on February 17, 2021. Throughout his working years, Marshall was a dedicated employee of Ansul, where he spent his entire career until his retirement.
Marshall is survived by his two children: Kim of Porterfield and Kurt of Crivitz; his sister, Connie Maves; and further survived by many sisters-in-law, brothers-in-law, nieces and nephews. He was preceded in death by his wife, DeeDee; mother and stepdad: Cassie and John; and siblings: Dixie and Sharon.
Cremation has taken place with no services.
Marshall’s family would like to extend their heartfelt appreciation to Crivitz Rescue, Aurora Bay Area Hospital, Unity Hospice, and the staff of Meadow Brook’s “Sunset Wing” for the exceptional care, kindness, and compassion shown to Marshall during his time in their care.
Roubal Funeral Home in Wausaukee is assisting his family with arrangements.
