John S. O'Brien

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Strang Funeral Chapel & Crematorium Ltd

Posted events

December 28, 2025

Jan

Visitation

10:00 a.m. - 11:00 a.m.

St. Gilbert Catholic Church

301 E Belvidere Rd, Grayslake, IL 60030

Jan

Funeral service

11:00 a.m.

St. Gilbert Catholic Church

301 E Belvidere Rd, Grayslake, IL 60030

Strang Funeral Chapel & Crematorium Ltd

Posted an obituary

December 28, 2025

John O'Brien Obituary

John "Jack" S. O'Brien, 88, a resident of Grayslake, IL, passed away December 27, 2025, at his home. He was born February 4, 1937 in Chicago, IL, to John and Joy Adele (Wilson) O'Brien.Jack is survived by his wife of 67 years, Cathryn O'Brien... Read John O'Brien's Obituary