O'Connell, Charlie, P.E., entered his heavenly home on Monday, January 5, 2026, at the age of 84. He was born in Newark, Ohio, the son of Charles Patrick and June (née Boyer) O'Connell.  Charlie earned his bachelor's degree in electrical engineering from the University of Michigan in Ann Arbor. He devoted many years of service to St. Louis County Water and later retired from Jacobs Engineering. He was proud to be a licensed Professional Engineer and was actively involved in the St. Louis Electrical Board and the Gentlemen of Sound Barbershop Chorus.

He is the beloved husband of Lynne O'Connell (née Wilke); dear father of Chuck (Sheila) O'Connell, Christopher (Christine) O'Connell, and Craig (Jennifer) O'Connell; proud grandfather of Emily and Morgan O'Connell, and Chase and Charley O'Connell; and dear brother of Joe (June) O'Connell. He was preceded in death by his brothers Patrick and David O'Connell.

Services: A memorial service will be held at Lord of Life Lutheran Church, 15750 Baxter Road, Chesterfield, MO 63017, on Saturday, January 17, 2026, at 10:00 a.m. In lieu of flowers, contributions may be made to the American Parkinson's Disease Association . As a service of the SCHRADER Funeral Home and Crematory, friends may sign the family's online guestbook at Schrader.com, or in person after the memorial service.