OBrien, Marguerite Mary White of Winchester, formerly of Lexington, March 18, 2023. Beloved wife of the late Charles F. OBrien, Sr. Loving mother of Karen OBrien and her husband Donald Thomson of Winchester, Charles OBrien Jr. of Burlington, Kathleen OBrien Hobart and her partner Rudy Dunn of Stoneham, Kerry Higgins Read MoreÂ