79, of Pittsburgh, on Saturday, December 27, 2014. Beloved wife of the late Lawrence J. Schessler; daughter of the late Stephen and Helen (Cozar) Vansachik; mother of Lawrence A. (Janet), Kenneth S. (Doris), Mark T. (Kate), and Paul M. (Dianne) Schessler. Grandmother of Paul J. (Samantha) Schessler, Imke (Mike) Jandreau, Eric Schessler, Lindsay M. Schessler. Great grandson Zachary Kenneth Jandreau. Sister of Marion (Richard) Palucis and David M. Vansachik. Dorothy worked for over 20 years as a dispatcher for Westinghouse and Schindler Elevator Co.