Aston, PA—Sister Theresa Helen Klein, OSF, 91, died in Assisi House on August 28, 2012. She had been a professed member of the Sisters of St. Francis of Philadelphia for 64 years. Sister Theresa Helen was born Mildred Ann Klein in Baltimore, Maryland, where she was a member of the Shrine of the Little Flower Parish. She entered the congregation in 1946 and professed her first vows in 1948. She ministered primarily in food service as a cook and as a school volunteer.

Sister Theresa Helen Klein ministered for 40 years in the Archdiocese of Baltimore where she worked in Immaculate Conception Convent, Towson (1951-1960); St. Anthony Convent (1970-1979); SS. Philip and James School (1979-1983, 1986-1987); the Shrine of the Little Flower School (1985-1987); and St. Elizabeth Convent (1987-1991). She returned to St. Anthony School from 1991-2003 as a volunteer member of support to the staff in the library. From 1983-1985, Sister Theresa took a leave of absence to act as a caregiver to a family member.

Sister Theresa Helen also ministered for 16 years in the Archdiocese of Philadelphia where she ministered as a cook at St. Mary Convent, Bryn Mawr (1963-1964, 1965-1970) and St. Alphonsus School (1964-1965). In 2003 she became a resident of Assisi House where she served in prayer ministry until her death.

Sister Theresa served for four years at St. Thomas Convent in Wilmington, Delaware (1947-1951). In addition she served three years at Morris Hall in the Diocese of Trenton (1960-1963).

All services will be held in Assisi House, 600 Red Hill Road, on Friday, August 31. A Christian Wake Service will be held at 9:30 A.M followed by viewing. Mass of Christian Burial will be at 11 A.M. Burial will be in Our Lady of Angels Cemetery in Aston. Sister Theresa Helen is survived by a cousin in the congregation, Sister Alice Klein; ­two brothers, Paul and Joseph Klein; nieces, nephews, and by her Franciscan family. Donations in her name can be made to the Sisters of St. Francis Foundation, 609 S. Convent Road, Aston, PA 19014.