

She leaves behind her beloved and devoted husband of 21 years, Mark Gibson, and the four loves of her life- her four children: P.J., Danny, Luke, and Grace Gibson. She was the devoted and cherished daughter of Philip J. O'Reilly, Jr. and Judith Grosso O'Reilly (deceased), and treasured sister to Maureen and Elizabeth O'Reilly. She was a dear daughter-in-law to Ruth and Dick Gibson and sister-in-law to Cathy and John McNamara, Bridget and Paul (deceased) Gervais, and Dennis, Marcia, Dan and Jamie Gibson. She was the adored granddaughter to Mary Nolan O'Reilly, Philip J. O'Reilly, Sr., and Maurice and Marie Grosso. She was the beloved aunt to Caroline, Nick, Katie, Matt, Sarah, Annie, Jack, Maggie, Jake and Ellie and adored niece to Patricia Kirby (deceased) and Brendan, Brian, and Karen O'Reilly. She was a dear cousin and friend to many; too numerous to list.
Mary was a graduate of the University of Dayton, where she met her loving husband Mark and discovered her love of teaching. She earned a Bachelor's degree in Elementary Education and a Master's degree in Special Education. She dedicated her life to children- both her own and as a special education teacher. She served for 20 years in the Georgia public school system and spent the last 6 years at Varner Elementary school in Cobb County, Georgia. She also taught religious education at St. Catherine of Sienna Catholic School in Kennesaw. She was recognized with numerous awards throughout her teaching career in recognition of her dedication and service. She leaves behind her adoring family, many devoted friends, and the immeasurable impact she had on all the children she taught and loved.
A celebration of her life will be held at Winkenhofer Pine Ridge Funeral Home, 2950 North Cobb Parkway, NW, Kennesaw, GA, 30152, on June 3rd from 5:00-8:00 p.m. and a mass of Christian burial will be held on Thursday, June 4th at St. Catherine of Siena, Roman Catholic Church, 1618 Ben King Road, Kennesaw, GA, 30144 at 10:30 a.m.
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