Mary Elizabeth "Betsy" Speicher, age 69, of Lexington, died unexpectedly at her home on Monday, October 30, 2017. Betsy was born in Reading, Pennsylvania on June 8, 1948 to her late parents, John Stanton Speicher and Elizabeth Ann Barr. The oldest of three children, she grew up in Wyomissing Hills, Pennsylvania before attending Bucknell University. Betsy furthered her studies with a master's degree from Purdue University, and a doctorate in human development from Harvard Graduate School of Education. While at Harvard, she assisted in the research and intervention programs of Lawrence Kohlberg and was an associate in the Henry Murray Research Center of Radcliffe College. In addition to publishing papers on parenting and other aspects of moral development, Betsy was co-author with Kohlberg and others of the book, The Measurement of Moral Judgment. A licensed psychologist and educator, in her early career Betsy served in numerous professional capacities including as a psychologist in private practice and as an Assistant Professor at both the University of Rhode Island and Boston University. She then joined the Lexington Public Schools as a Psychologist in 1994 and served for more than twenty years before retiring in June of 2015. Betsy was known for her sense of humor and unmistakable laugh, local town activism, and love of a good argument! She was a member of the League of Women Voters in Lexington, and volunteered to drive for FISH of Lexington. Betsy also was an active member in the Peacock Farm Association. The things in life that brought her immense joy include spending time with her grandchildren and her many treasured friends, reading, traveling, and memories of her childhood summers spent at Camp Runoia in Belgrade Lakes, Maine. In addition to friends near and far, she leaves behind her loving daughter, Elizabeth Nadzo and her son-in-law Eric of Concord, MA. She was the proud grandmother of Sarah, Benjamin, and John Nadzo, and the beloved sister to Ann Cahill of Jacksonville, FL and John Speicher of Sinking Springs, PA. A celebration of her life will be held in the spring. In lieu of flowers, contributions in her memory may be made to the "Betty Cobb Campership Fund," payable to the Camp Runoia Alumnae Organization, c/o Jody Sataloff, 9 Birch Knolls, Cape Elizabeth, ME 04107. Arrangements are under the care of the Dee Funeral Home of Concord.