In the fall of 1928, 11 students were enrolled in Our Lady of Mercy Academy, originally created as a boarding school for young women. By the end of the year, there would be 30 students comprising the 8th and 9th grades. The year before in 1927, the Sisters of Mercy of Brooklyn began plans for building a boarding school in Syosset. Its location in the Town of Oyster Bay, the cornerstone of colonial settlement of the north shore, suggested that the building be colonial in structure. In keeping with these early roots, the sisters envisioned a Georgian structure whose main entrance on Syosset-Woodbury Road would be enhanced by a tall-pillared portico with graceful Doric columns. Georgian influence would be seen in paneling, lighting fixtures and windows. The distinguishing feature of the building is the colonial tower rising 117 feet and patterned after Independence Hall in Philadelphia. Benjamin Wyatt would have felt right at home if he walked up what was the back entrance, but now, with an added canopy, has become our main entrance. Geographically, the 96 acres create an atmosphere of spaciousness and natural beauty. They also provide opportunities for education. Our wide, rolling acres serve the Athletic Department for softball, tennis, soccer, lacrosse and track. The Science and Art Departments use the grounds for extended classroom instruction and experimentation, including our Arbor Day ceremony of planting memorial trees. Although the Academy was built as a boarding school, it always made room for day students who were few in those early days. By 1964, however, with increased population growth on Long Island, it became obvious that there was not so much a need for a boarding school as for day students. Dormitories were converted into classrooms, and dining rooms into cafeterias. The parlors still remain for meeting parents and guests, and providing meetings for special events. World War II brought difficult times to the Academy. The school was involved in food stamps, rationing, victory gardens, air raid drills, and two hours of weekly instruction in First Aid. A few English students were sent to escape the bombing in Europe. Students could watch the young aviators training from local airfields, since the Academy tower was used as a turning point for them, and they thrilled the students by tipping their plane wings in greeting. The years after the war saw a tremendous growth in curriculum enrichment and parent participation. A PTA was established in 1948, and, with tremendous support from parents and friends, we were able to build a new gym in 1978. Curriculum has been enriched in art, dance, music and theatre. Advanced placement courses, college affiliation classes, computer labs, Internet access, on-line databases and a completely automated library media center, all indicate that OLMA has progressed from those early 20th century years with 11 students, 5 faculty and a Regents approved curriculum for the times, to the threshold of the 21st century with 500 students, 69 faculty and staff, and a curriculum providing access to all colleges and professions, and preparing women with a Catholic, value-centered future.
Faculty
The school is headed by a president and a principal.
The philosophy of Our Lady of Mercy Academy is based on the Church’s threefold mission: to impart the message of Jesus, to advance the building of Christian community, and to bear witness to the Gospel message.
The Academy's stated principle of Fides, Mores, Cultura, and it educates its students to seek personal fulfillment as aware, contemporary Christian women.
The academic curriculum at Mercy is challenging. It includes an Honors program and Advanced Placement courses.
Seniors may enroll in accredited college courses offered through St. John's University.
The Advanced Placement courses are recognized by all colleges in accordance with their acceptance rules.
All freshmen are required to take half a year of dance and half a year of physical education, as well as music, computer technology, and regular subjects. The languages offered are Spanish, Italian, French, and Latin. Juniors and Seniors are required to enroll in electives, and are given to opportunity to choose among many: seven arts classes, computer classes, social sciences.
Online classes offered in Latin and Economics.
Uniform
The uniform consists of a plaid kilt, white polo shirt, and a sweater. Each grade level wears a different color skirt. The skirt you receive as a freshman is again worn Sophomore year. Junior year a new skirt is worn and again worn senior year. At the end of Sophomore year, the class votes on what kilt pattern they will wear for the next two years.
Clubs and activities
The school nickname is the Lady Mustangs.
Sports Night and Spirit Week, along with the play, are the overarching activities
Varsity Mock Trial Team: In 2013, the Mock Trial Team won the Nassau County Bar Mock Trial Tournament, beating out 46 other high schools
National Honor Society
OLMANAC
Photography
Polka Club
Pro-life
SADD
Ski club
Soccer
Softball
Spanish
Spanish National Honor Society
Student council
Swimming
Tennis
Track and Field
Tri-M Music Honor Society
Video club
Volleyball
Windows
Witness
Yearbook
Traditions
"Mercy Girls" tend to refer to themselves as that throughout their time at school and well after graduation. There are several respected traditions including the Senior Stairs and the OLMA seal.