Lois Anne Turnbull, age 80, died Sunday, January 4, 2015 in Wingate at Belvidere in Lowell. She was born in Waltham, April 13, 1934, the daughter of the late Dean and Amelia (Watson) Turnbull. She worked as an Executive Secretary for Raytheon Corporation in Waltham. A resident of Billerica for most of her life, she enjoyed singing in the First Congregational Church Choir, where she was a secretary and an active member. She was also a member of the Turnbull Clan Association and the Rainbow Girls. She is survived by her two sisters, Helen Divoll and her husband, John, of Royalston, MA and Alice Foy, of Montville, Maine, her two brothers, Lee Turnbull, of Merrimack, NH and Donald Turnbull and his wife Sandra, of Thorndyke, Maine. She is also survived by many nieces, nephews, and great nieces and nephews, and great-great nieces and nephews. She was the sister of the late Edith Mary Turnbull and Dean T. Turnbull.