Mary Agnes Sibley

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Horan & McConaty Funeral Service & Cremation - North Metro/Thornton

Posted events

June 18, 2025

Jul

Rosary

10:30 a.m. - 11:00 a.m.

Immaculate Heart of Mary Catholic Church

11385 Grant Dr, Northglenn, CO 80233

Jul

Memorial service

11:00 a.m. - 12:00 p.m.

Immaculate Heart of Mary Catholic Church

11385 Grant Dr, Northglenn, CO 80233

Horan & McConaty Funeral Service & Cremation - North Metro/Thornton

Posted a video

June 18, 2025

Horan & McConaty Funeral Service & Cremation - North Metro/Thornton

Posted an obituary

June 18, 2025

Mary Sibley Obituary

Mary Agnes Sibley, of Thornton, Colorado, passed away at age 90 on June 19, 2025. She was born on October 9, 1934 in Detroit, Michigan, to Mary Agnes Deck and Milton J. Deck, Sr.She graduated in 1952 from Immaculata High School in Detroit, Michigan... Read Mary Sibley's Obituary