Charles “Charlie” F. Istvanek, 91, of Kenosha, passed away peacefully in his home on Thursday, January 22, 2026, surrounded by family.
Born in Pleasant Prairie on October 23, 1934, he was the son of the late Stephen and Mary (Bizon) Istvanek. He was married to the love of his life, Sandra Witkauskis, for 48 years until she preceded him in death on May 31, 2009. In his younger days he enjoyed hunting, playing baseball, and driving his ‘59 Buick.
Charlie was known for his kindness, generosity, and strong work ethic. He served in the United States Army from 1957-1963 and was certified as a medic, receiving two medals. He was employed primarily as a welder for American Motors Corporation for over 30 years. He then continued to work for Kenosha County Parks Department for another 10 plus years. After retirement, he continued to remain active by helping on his family farm. He always loved spending time with his family. Charlie loved and spoiled many dogs throughout his life, including Cinnamon, Chocolate, Rags, Meggy, Whiskers, Sandy, Patches, and Spicer.
Charlie is survived by his daughter, Tammi (Jeffrey) Senical; grandchildren, Tisha (Gregory) Geis, Samantha (Ryan) Lauf; siblings, Patricia Cairo and James (Heidi) Istvanek; nephew William (Abby) Schmidt; and great-nephews, Stephen and Trent; and great-niece, Brooke.
Along with his parents and wife, Sandra, he was preceded in death by his children, Sherri and Lisa Ann Istvanek; siblings, Stephen, Rosie, Albert, Ida, Lizzie, Ann, Eddie, and Mary; brother-in-law, Louis Cairo; father-in-law, Michael Witkauskis; and mother-in-law, Violet Sturycz.
Charlie will truly be missed by all who knew and loved him.
A visitation will be held at Proko Funeral Home on Friday, January 30, 2026, from 9:30 a.m. until the time of a prayer service at 11:30 a.m. Immediately following, a Mass of Christian Burial will be held at St. Peter Catholic Church, 2224 30th Avenue, Kenosha, WI 53144 at 12:30 p.m. Interment will be held privately in All Saints Mausoleum. In lieu of flowers please send donations to the Dementia Society of America.
Condolences
Joel Senical
January 26, 2026
Pop's always described Charlie as one of the hardest workers he had ever known. He was also the person everyone in the AMC plant went to when they needed expertise. I was taken in by his quite demeanor and love for animals. It's no wo wonder why Tammi is so amazing. All our love. The entire Senical family.
Alisa Ruffolo / Taleronik
January 25, 2026
Sending condolences to Tammy and family . So sorry for your loss. .