Mary Ellen Mroz, 98, was born on May 31, 1927 in Milwaukee Wisconsin to Fredereick and Salome (Freuler) Lederer and passed away peacefully on April 21, 2026. She was preceded in death by her husband and best friend of 71 years, Norbert Mroz; her brothers Frederick, Roger, Berton, Anthony, and Lawrence; her sisters-in-law Jean, Cecile, Carmella, Betty and Jean Hayes (Mroz).
Mary Ellen was the loving mother of Thomas (Carol), Patricia Mroz-Skolar, Mary Lynn (Joseph) Kostuchowski, Margaret (Douglas) Gren and “Bonus Daughter” Judy Dzieglewicz; proud grandmother of 12; proud great grandmother of 17; beloved sister of Richard (Gloria) Lederer; and dear friend to many.
She will truly be missed by all those whose lives she touched so deeply.
Visitation will be on Sunday, April 26, from 1-4pm at DeFiore Funeral Home-10763 Dundee Road, Huntley. A second visitation will be held on Monday, April 27 at 9am at St. Mary Catholic Church, 10307 Dundee Road, Huntley, with a Mass to follow immediately at 10am. Burial will be held at St. Michael the Archangel Cemetery in Palatine.
For further information contact the funeral home at 847-515-8772 or online condolences may be directed to www.defiorefuneral.com
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Patty, Tom, Mary and Peg, My heartfelt condolences aunt Mary Ellen was one of my dearest aunts. So many wonderful memories, she inspired me in many ways. I deeply miss both aunt and uncle. Love you all ❤️💐
My deepest condolences to the family. With such longevity, no doubt you all have wonderful memories to love and share.
Mary Ellen and Norb were like second parents to me. I think I was the son they always wanted!!! I was always welcome in their home. Even after Tom was married I would spend the night at their house when I had reserve weekends since it was much shorter drive early in the morning. My sincerest and deepest condolences to all the Mrozs. Glad she is in heaven with Norb.
I’m so sorry for your loss. I remember your mom so well from growing up down the street—she was always such a kind and gentle presence. She lived an incredibly long and meaningful life, and it’s clear how deeply loved she was. Please know you’re in my thoughts during this difficult time. Wishing you comfort and peace in the days ahead.