Sister Theresa Looby, of the Sisters of Mercy died peacefully on Saturday, October 12, 2019, at St. Mary Home in West Hartford. Sister Theresa was born in Thompsonville on June 14, 1930, the daughter of Arthur Looby and Mary (Flynn) Looby. Sister remained a lifelong resident of Connecticut. After graduating from high school she entered the Sisters of Mercy on June 27, 1948 and professed her vows on January 2, 1951. She earned her B.A. in Education and an M.A. in Religious Studies from St. Joseph College, now the University of St. Joseph. Sister also took classes in Pastoral Counseling. Sister began her Mercy ministry in elementary education and taught for 26 years in 11 elementary schools in CT. Sister’s heart was with the children encouraging them to be the best they could be. In 1977 Sister transitioned to South Catholic High where she taught for 11 years. After 36 years as an educator Sister turned her energy to the elderly and transitioned to St. Mary Home in West Hartford as a Resident Care Coordinator where she ministered to the elderly for 12 years. During this period Sister Theresa attended the Mercy Conference on Aging where she learned more about the spiritual and corporal needs of the aging. Seeing the needs of her Sisters at Mercyknoll she ministered to her aging Sisters for 6 years. In 2006 Sister took a sabbatical and worked at Jubilee House as a volunteer tutor until 2011. By this time Sister Theresa was feeling her age and graciously moved into St. Mary Home where she made new friends and enjoyed new relationships as well as some much deserved leisure time. Sister will be missed by her Community of Sisters of Mercy. Calling hours will be held at St. Mary Home Chapel, 2021 Albany Ave., West Hartford on Thursday, October 17, beginning at 1:30 p.m. followed by a Mass of Christian Burial at 3:00 p.m. Burial will be on Friday, October 18, 11:00 a.m., at St. Patrick, 1550 King St. Cemetery in Enfield. Donations in memory of Sister Theresa may be sent to the Sisters of Mercy, 25 Prescott St. West Hartford, CT 06110. Arrangements are made by Sheehan-Hilborn-Breen Funeral Home, West Hartford. Online condolences may be made at www.SheehanHilbornBreen.com