Sister Barbara Moore, O.P. (born 1914, died October 9, 2008) was a faculty member at Mon Don. She earned a master's degree in biology from Villanova University and became a full member of the Dominican Sisters of Newburgh (New York) in 1943. She taught in New Jersey, New York, and North Carolina, and was even the principal of Annunciation School in Crestwood, New York from 1952 to 1953. She taught in the science department at Mon Don and later worked in the nurses' office before retiring in 2007 at the age of 92. She was the oldest faculty member in the history of the school. She died in Newburgh, New York the following year, at the age of 93.