John M. "Jack" Engelhart

Engelhart, John "Jack" – of Clio, age 99, passed away Sunday, January 18, 2026, at his home surrounded by loved ones. A Mass of Christian burial will be held at 11AM, Thursday, January 22, 2026, at St Charles & Helena Catholic Church - 230 E Vienna St, Clio, MI. Father Ken Coughlin to officiate, burial to follow in Thetford Township Cemetery. The family will receive visitors on Wednesday at the funeral home from 5PM until 8PM with a rosary being held at 7PM, and at Church from 10AM until the time of Mass. Memorial contributions may be made to the Clio area Historical Association.

Jack was born January 27, 1926, in Flint, Michigan to the late Augustian and Mildred (Mergan) Engelhart. He attended St. Michael's in Flint and furthered his education at Michigan State College. A proud Army Veteran, Jack served in World War II, where he led the motor pool in Japan, embodying the spirit of service that would define his life. On June 9, 1951, he married his beloved wife, Clarice, with whom he shared a lifelong journey of love and companionship. In 1971, Jack founded Quality Pool Supply Company. He was a cherished member of St. Charles and Helena Catholic Church and actively participated in local organizations. To name a few would be the Lions Club, the Historical Society of Michigan, Clio Area Historical Association, 4-H, Troop 104 Boy Scouts, Clio Area Foundation, and Clio Veterans Memorial Park.

Jack was an inventor at heart. He had a remarkable talent for fixing anything. Throughout his life he enjoyed being outdoors: hunting, skiing and snowmobiling. He enjoyed spending time with his family. Jack will be remembered for his boundless patience, infectious humor, and positive outlook on life. He had a unique ability to see the good in everything and everyone, leaving a lasting impression on all who knew him.

Surviving are: Wife, Clarice (Carter) Engelhart; Children: Cary (Maryjane) Engelhart, Marsha (John) Coulier, Lee (Julia) Engelhart and Jana (Jeff) Walser; Grandchildren: Crystal Mann, Jordan (Monica) Engelhart, Jenna Engelhart, Christopher Coulier, Michelle (Sarah Clymer) Coulier, Laura Coulier, Marissa (Ronald) Tapplin, Arron Engelhart, Mitchell (Marta Corvaglia) Walser and Megan (Gage) White; Great Grandchildren: Peter, Kairi, Finn, Killian, Amelia, Maveric. He is preceded in passing by his grandson, Ryan Stawasz; Sisters: Corinne Young and Helen Stuntz; Brother, Ted Engelhart.

O'Guinn Family Funeral Home

Clio Chapel

810.686.5070