Born in Malden, Mass., Sister Mary Lou was the daughter of the late William and Ruth (O'Neil) Graziano. She entered the Sisters of Notre Dame de Namur in 1957. She ministered in education in Worcester, East Boston, South Boston, Lawrence, Wakefield and Salem, N.H. She was also the manager for the Shelter for the Homeless in Lawrence, Mass. She returned home to her good God on July 26, 2021. She is interred at Belle Isle Cemetery in Winthrop, Mass.
Sister Mary Lou is survived by her brother, Rev. Peter N. Graziano of Winthrop, Mass., by her Sisters of Notre Dame de Namur as well as many cousins. She was predeceased by her infant sister, Mary.