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BORN
1941
DIED
2025
FUNERAL HOME
Joilou Hoernemann Obituary
Joilou Masten Hoernemann, 84, of Denton, Texas, passed away on December 12, 2025. She was born in Sanger, Texas, on August 19, 1941, the daughter of Charles L. and Eunice Leona (Brewer) Masten.
Joilou married Michael John Hoernemann on September 19, 2020, in Corinth, Texas.
Joilou spent her career in the Insurance Industry and retired from Lufthansa Airlines.
She is preceded by her parents, Charles and Eunice Masten; three brothers, Terry Joe Masten, Billy Frank Masten, and Wylie Curtis Masten.
Those surviving to cherish Joilou’s memory are her husband, Mike Hoernemann of Denton; two daughters, Tracy Ann Cook of Lewisville, Wendy Lynn Lehmer of Plano; one son, Steven Robert Charles Wilson of North Carolina; seven grandchildren, David Joseph Cook, Joshua Daniel Cook, Chelsea Lei-anne Cook, Danielle Nicole Dunkle, Travis Scott Steffen, Alison Renee Steffen, Zachary Charles Wilson; and thirteen great-grandchildren.
A Celebration of Life for Joilou will be held on Saturday, January 31st, 2026, from 1:00-3:00 PM at the Robson Ranch Grill (Lounge) 9400 Ed Robson Blvd, Denton, Texas 76207.
Friends and loved ones are invited to share memories or offer condolences to the Hoernemann family in the online guest book at www.cokerfuneralhome.com
Memories and Condolences
for Joilou Hoernemann
3 Entries
Millard and Nancy Smith
February 19, 2026
We are sorry for your loss.
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Debbie Hughes
January 31, 2026
When I met her, it was at a Bible Study at Robson Ranch. I informed her I knew Tracy, Chelsea and DJ through Argyle MedSpa and how much I loved her daughter and grandkids. We chatted a little bit and I just enjoyed her so much! She had the best heart and joy!
Amelia White
January 17, 2026
Joi was always smiling, she was such a fun person to be around, and I loved her for that. She will surely be missed by family and friends. Our memories hopefully will give us comfort. Sending you strength and wishing you peace.
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