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Thomas M. Sullivan, Sr., age 81, peacefully passed away on October 16, 2025. He was born in Baltimore, Maryland to the late Samuel and Agnes Sullivan. Thomas is the beloved husband of the late Barbara Ellen Sullivan; loving father of Lorraine Sullivan Matsangos (the late Emanuel), Agnes Sullivan Wieczynski (David), Ryan K. Sullivan, Barbara P. Sullivan, and the late Thomas Sullivan, Jr.; cherished grandfather of Aerielle Matsangos Pancholi (Deep) and Nicolette Matsangos; dear brother of Robert Sullivan, Genevieve Murray, the late William L. Sullivan, the late Vernon Sullivan, and the late James Sullivan. Thomas is also survived by his beloved dog Gunnar and his granddogs Ernie and Sammy.
Family and friends may gather at the family owned Ambrose Funeral Home of Lansdowne, 2719 Hammonds Ferry Rd., Lansdowne, MD 21227 for a public visitation on Tuesday, October 21 from 5:00-8:00pm. A Mass of Christian Burial will be held at St. Clement Church, 2700 Washington Ave. Lansdowne, MD 21227 on Wednesday, October 22 at 12:00pm. Interment will immediately follow at Glen Haven Memorial Park.
To plant trees in memory, please visit the Sympathy Store.
2719 Hammonds Ferry Road, Lansdowne, MD 21227-3138

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