HARRINGTON, Margaret M. "Peggy" (O’Sullivan) of West Roxbury formerly of County Kerry, Ireland passed away peacefully surrounded by her loving family on May 12, 2022. Daughter of the late Catherine and Michael O’Sullivan. Beloved wife of 52 years to the late Daniel J. “Red”. Loving mother of Kathy Harrington and her husband Nick Nasuti, Margaret Lake and her husband Greg, Maureen Bruen and her husband Kevin, Donna Coppinger and her husband Ed and Karen Feeney and her husband Jimmy all of West Roxbury. Devoted Nana of Maggie, Kaitlyn, Shane, Kyle, Kevin, Chris, Emma, Steve, Ryan, Timmy, Ava, Keira, Niamh, Daniel, Maeve and Fiona. Dear sister of Dan-Jo, Michael, Kathleen, and the late Auntie Maureen, Patrick, and Noel. Sister-in-law of Maureen Carroll, Tommy Harvey, and the late John Harrington. Also survived by many close relatives and friends here and in Ireland and England. Funeral from the William J. Gormley Funeral Home, 2055 Centre Street, WEST ROXBURY on Monday, May 16, 2022 at 10:30am. followed by a Mass of Christian Burial in Holy Name Church at 11:30am (To live stream the Funeral Mass, go to https://www.harborview.live ). Relatives and friends are kindly invited to attend. Visiting hours Sunday from 4 to 8 pm. Interment St. Joseph Cemetery. In lieu of flowers, donations may be made in memory of Margaret Harrington to support melanoma research under the direction of Dr. Ryan Sullivan at the Massachusetts General Hospital Cancer Center, c/o MGH Development Office, c/o Megan Daniels, 125 Nashua Street, Suite 540, Boston, MA 02114 or at giving.massgeneral.org