Margaret M. (Bussiere) Olmstead, 77, of Winchester, passed away on January 22, 2026 at home surrounded by her family after a period of failing health. Margaret was born on May 22, 1948 in Keene, NH, the daughter of Neil and Margaret Bussiere. She attended school locally and she graduated from Monadnock Regional High School in Swanzey, NH in 1966. She married her childhood friend and love of her life, Phillip “Dave” Olmstead, on May 1, 1968 in Swanzey, NH with both of their parents by their sides. They enjoyed 57 years of marriage together. After their marriage, Dave returned to combat in Vietnam while she worked as a telephone operator for Ma Bell until 1971. Margaret was a devout Catholic. She enjoyed attending mass each Sunday at St. Anthony’s in Swanzey, NH as a child and then at St. Bernard’s in Keene, NH as an adult. She worked in the rectory at St. Bernard’s for many years until her retirement. She was very active within the church, and her faith was an incredibly important part of her life. Margaret, or Peggy, as she was known to many, loved the outdoors. During the spring and summer months, she could be found spending time outside. She and Dave could be found picnicking by a river or stream, riding the ATV together, fishing, or spending time in their cabin. She also enjoyed her yearly trip to Franconia Notch and fishing in Echo Lake. She is survived by her husband, Phillip Olmstead of Winchester, NH; her 3 children, Mandy Moore and her husband Jason of Keene, NH, David Olmstead and his wife Felicia of Winchester, NH, and Lori Turcotte and her husband Phillippe of Keene, NH; and her sister, Barbara Metcalf and her husband James of Marlborough, NH. She loved being Grammy to 16 grandchildren and 11 great grandchildren. She also leaves behind many nieces, nephews, and close friends who she considered family. She is predeceased by her brothers, Neil and Gerald. There are no services at this time. Interment and graveside service will be held in the Spring at Mountainview Cemetery in Swanzey, NH. The Cremation Society of New Hampshire has been entrusted with arrangements. To view an online tribute, leave a message of condolence or for more information please visit www.csnh.com.