Sheila and her younger sister, Katherine (MP # 1837), were last seen at the Wheaton Plaza Shopping Center in March 1975. Sheila was last seen wearing farsighted gold wire rimmed glasses. Katherine has a birthmark on the inside of her upper thigh. In 2014, the Montgomery County Police Department asked for the public’s assistance with any information related to a late 1960's or 1970's model station wagon believed to be involved in the girls’ disappearance. (Information retrieved from NamUs.gov)