Patricia A. Thornton, 77, of Lancaster passed away Monday, August 29, 2016 surrounded by her loving family. Born in Youngstown, OH she was the daughter of the late William H. and Marcella (McGowan) Armstrong. She was the loving wife of Frank J. Thornton with whom she shared over 54 years of marriage. She was a graduate of Woodrow Wilson High School in Youngstown. Patricia was a devoted employee of Lancaster General Hospital for over twenty two years. During her career at LGH, Pat was an esteemed team member in the Day Surgery Center at its inception. She also spent time in the Maternity Center and the Nursing Administration Office. Pat ended her career in the NeuroScience Pain Center at the LGH Campus, where her notes and procedures are still followed today. Pats gifts and talents of organizational and people skills have never gone unnoticed. Even after retirement, Pat was asked back to fill in and help out in various departments that need guidance. Upon her retirement in 2000, Pat enjoyed spending time with her family and friends, going to the beach and reading. She was always up-to-date on current events, politics, sports and fashion. Patricia was a member of St. John Neumann Catholic Church. In addition to her loving husband Frank, she is survived by two daughters, Mary Katherine Woodruff wife of Mark of Hockessin, DE, Maureen F. Files wife of Steven of Lancaster and three grandchildren, Nicole, Katherine, and Lauren. Also surviving are two brothers, Charles P. Armstrong husband of Diane of Canfield, OH and Robert Armstrong of FL. In addition to her parents she was preceded in death by two brothers John and William Armstrong. Friends and Family will be received from 9:30AM-11AM with a Mass of Christian Burial to follow at 11AM on Friday, September 2, 2016 at St. John Neumann Catholic Church, 601 E. Delp Rd, Lancaster, PA 17601 with Fr. Dan Powell as Celebrant. Interment will be held at the convenience of the family. Flowers will be received. Contributions also can be made in Patricia's memory to the church at the above address.