Leadership

Mary O’Neill is a graduate of Bishop Amat High School and holds both a Bachelor of Science and a Master of Science in Mathematics from Cal Poly Pomona. She devoted over 30 years to teaching high school mathematics and also shared her expertise as an evening instructor at Mt. San Antonio College for more than 17 years, as well as teaching for several years at Cal Poly Pomona.

She is a registered parishioner at St. Anthony Catholic Church in Upland and regularly attends daily Mass at St. Peter and St. Paul in Alta Loma, where she serves as a lector on Tuesdays and Saturdays. On Sundays, she sings at the 8:00 AM Mass at St. Anthony’s.

Outside of her parish and teaching commitments, Mary enjoys gardening—tending to more than 100 rose bushes, over 20 citrus trees, and a variety of other fruit trees—and traveling.