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John Deinlein Obituary
Milwaukee - John found peace on January 25, 2021. He was born in 1951 in Milwaukee to the late Aileen and Gerald Deinlein. His brothers and sisters Kathryn, Laura, Robert and Thomas preceded him in death.
As a Principal Engineer in the Firmware Drives Group of Rockwell Automation, John was an expert in Safety Systems. He was respected and highly admired by his peers in his 40+ year career that took him, at times, around the globe. John was always there for his family and cherished every gathering by capturing all the special moments with his camera for all to enjoy. While John was meticulous in his career and home life, he had an adventurous side with a passion for skiing, cycling, and motorcycles. In his youth, he tested his mother's nerves by flying airplanes and skydiving!
He was a beloved older brother to Mary (James) Connelly, and Peter (Cindy) Deinlein; and Uncle to nieces Ashley (Adam) Kent, Frances (Aaron) White, Madeline (Saul) Verbera, and Brittany (Rick) Callies; and his grand little joys Evan, Carson and Rickie Callies, and Henry and John White.
John believed an education was the foundation for a civil society. To honor John's life, please consider a gift to the Robotics program at Dominican High School, 120 East Silver Spring Drive, Whitefish Bay, WI 53217; he felt STEM education vital for future generations. A private family service will be held.
To plant trees in memory, please visit the Sympathy Store.
Memories and Condolences
for John Deinlein
Cal Steinweg
February 26, 2021
John will be remembered as a kind soul who really enjoyed life. I worked with John many years at Allen Bradley, learning so much from him, always respecting his abilities to problem solve and help wherever needed. We also enjoyed playing tennis and riding motorcycles together. It´s a great loss for everyone who knew and loved John.
Margaret Krejci Lehnertz
February 10, 2021
John was a good friend from high school. We had many happy times together. He will be missed. I am so sorry for his family.
Dave Siegler
February 7, 2021
John was a gentleman. scholar and a mentor to me. I worked with him for many years. Quiet competence, hard work and always learning. We shared a love of engineering, aviation and bicycles. He a wonderful person always talking about his extended family. Gone too soon. I will truly miss him.
Nikhil Prasad
February 5, 2021
My deepest sympathies to John´s family and friends. I had the good fortune to work with him for a few years recently and he always demonstrated his high integrity and grit. A highly respected and experienced professional, he was the voice of reason in tough situations. We had a sense of surety and high standards whenever working with him. A happy go lucky person, will miss him.
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David Jasinski
February 4, 2021
John had a passion for his motorcycle, his Miata, and his meticulous deign. I'll miss the hallway conversations with him.
Jan Komoll-Owen
February 3, 2021
John and I went to High School together and remain friends to this year. He was so proud of his family. I can still hear his voice inflection when naming the next family member or friend to catch up with—John will be missed. Sending my love and deep sorrow to his family.
Kay Kibisch
February 3, 2021
Prayers to the family. Very sorry for your loss. He was a very nice person
Kay Kubiy
February 3, 2021
John was always a happy go lucky guy. I worked with him many years at (Allen-Bradley) Rockwell
Tom Gilmore
February 3, 2021
I worked with John many years at Rockwell. I am very sorry to hear of his passing. Gone far to soon. My prayers are with him.
Andrea Kohl
February 2, 2021
My deepest sympathies to John's friends and family. I used to work with John until I retired last year. He always talked about his family and lit up when talking about his family. He was a good man who I admired very much. Gone too soon. I was lucky to have known him.
Todd Jaremko
February 2, 2021
John was a great engineer, always a pleasure to work with. My condolences
Gregory Thiele
February 2, 2021
To Peter, Jeni and I wish to extend our deepest sympathy on the passing of John. You and your family are in our thoughts and prayers.
The Madden Family
February 1, 2021
To Mary and Peter, we extend our deepest condolences. You are in our thoughts and prayers.
May the wind be always at your back. May the sun shine warm upon your face; the rains fall soft upon your fields and until we meet again
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