Mr. and Mrs. John Driscoll of Methuen, Massachusetts announce the engagement of their daughter, Melissa Driscoll, to Dr. David St. Jean, the son of Mr. and Mrs. Roger St. Jean of Sterling, Massachusetts. Currently, Melissa and David reside in Chicago, IL. Melissa practices at a psychiatric hospital as a dance/movement therapist and counselor. David is the owner of the Neurometabolic Center of Chicago where he practices as a Chiropractic Neurologist and Functional Medicine specialist. No date has been set for the wedding.