Cover photo for Theresia Oppermann's Obituary
Theresia Oppermann Profile Photo

Theresia Oppermann

November 19, 1935 — May 24, 2022

Theresia Oppermann

Theresia Oppermann, known by most as Oma, was born on November 19, 1935 in Semlin, Yugoslavia to Anna and Wendelin Schintzler. As a young girl, her family fled to Vöcklabruck, Austria where she spent her youth and later met the love of her life, Philipp Oppermann.

In 1955, she came to the U.S. with her mother, stepfather (Fredrich Hauser), and younger sister, Katherine (Posawatz). Philipp’s love for her brought him overseas to join her in the U.S. and less than a year later they were wed on November 17th. Not only was Theresia a wonderful mother to her two children, (Hannelore “Lori” and Alfred “Freddie”), but Theresia was also an incredible seamstress. Theresia’s legendary sewing skills led her to pursue a career as a seamstress working in everything from wedding gowns to custom made bathing suits.

If you were lucky enough to know Oma, you were sure to receive a pair of her crocheted batschen, a handmade afghan, or one of her fabulous baked goods. Oma spent most of her time in the kitchen cooking and/or baking delicious assortments of German dishes.

Undoubtedly, her true passion was her grandchildren. She was often seen on the sideline of sporting events, dance recitals, and sewing costumes for the Charlevoix Rayders. Her love and devotion to family is unmatched. She has outcooked, outbaked, and out sewn us all. Her life was complete when her great granddaughter Poppy Jane joined the family in 2020. 

She passed peacefully surrounded by her loving family on May 24, 2022. Theresia is survived by her sister Katherine Posawatz; two children - Hannelore Foster (Irvin Daley), Alfred (Patricia) Oppermann; grandchildren - Billy Foster, Emily (Micah) Brown, Alex (Cloe) Foster, and Brittni Daley; and great granddaughter Poppy Jane Brown, as well as numerous nieces and nephews. 

She is preceded in death by her mother, father, stepfather, husband, and two stepsisters. 

The celebration of life will take place at St. Peter’s Lutheran Church, Chicago Rd. Warren, Mi on Friday, June 3, 2022 at 10:30am. Burial to follow at Resurrection Cemetery in Clinton Twp, MI.  

In Lieu of flowers, consider a donation to DeVos Children’s Hospital NICU or St. Peter’s Evangelical Lutheran Church in Warren, MI or your local congregation. 

Arrangements are in the care of the Charelvoix Chapel of Mortensen Funeral Homes.  Please sign her online guestbook at

Past Services

Celebration of Life

Friday, June 3, 2022

Starts at 10:30 am (Eastern time)

St. Peter's Lutheran Church

11423 Chicago Rd., Warren, MI 48093

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