Cover for John Frank Kosinski's Obituary

John Frank Kosinski

Apr 20, 1971 — Aug 11, 2026

Clinton Township, Michigan

John Frank Kosinski, beloved husband, devoted stepfather, cherished son, and loyal friend, passed away on August 11, 2026, at the age of 55. Born on April 20, 1971, John's life was marked by deep dedication to his family, a steadfast commitment to his work, and a genuine enthusiasm for the many interests that brought him joy.

John enjoyed a distinguished career as a geometric Dimensional engineer, dedicating over 30 years to the profession. His colleagues and friends admired his expertise, attention to detail, and unwavering work ethic. Through his career, John made significant contributions to his field, while also serving as a mentor and positive influence to those around him.

Beyond his professional life, John was known for his vibrant personality and wide array of passions. He loved heavy metal music and delighted in attending rock concerts whenever the opportunity arose. John’s spirit for adventure was matched by his love for leisure—spending hours cooking, mastering trivia night, fishing, playing darts, and shooting pool. Of all these interests, none brought him as much happiness as spending time with his granddaughter Angelina; the joy and pride he took in their moments together was evident to all who knew him.

John was also deeply passionate about war, politics, military history, arms, and artillery. He was well-informed, and enjoyed meaningful conversations on these topics, demonstrating both his knowledge and his commitment to understanding the world around him.

Family was of utmost importance to John. He is survived by his loving wife, Amy, and his devoted step-son, Gino, along with Gino’s wife, Lizbeth. He leaves behind his adored granddaughters, Angelina and Laila. John also leaves to mourn his mother, Patricia, as well as his sisters, Suzanne, Sherry (Greg), and Judy; his brother, Jimmy (Linda); and his nieces and nephews: Michael, Nick, Rachel, Josh, Veronica, Breana, Mark, Riley, Grace, Cameron, and Bennett. John’s extended family includes his mother-in-law, Deborah (Richard), Buffy (Jim), and Shelby (Scot),  Their love and support brought John immense happiness and fulfillment throughout his life.

John Frank Kosinski’s legacy will be remembered by all who had the privilege of knowing him. Friends and family alike cherish his generosity, wit, and the many shared memories that will continue to bring comfort in the days ahead.

As we say our farewells, John’s memory will endure in the hearts of those he touched, and his spirit will continue to inspire those who had the honor of sharing in his remarkable journey.

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