The church of St. Aidan and its buildings line both sides of Willis Avenue in Williston Park. Though each building carries a separate number (helpful to emergency services), the parish mailing address is 505 Willis Avenue, Williston Park, New York 11596. The phone number is 516-746-6585, with various extensions for the offices, among them: Rectory ext. 9101, west school ext. 9202, east school ext. 9302. The parish website is linked here.
Above, the first photo shows the church on the west side of Willis Avenue, one block north of Hillside Avenue (NY 25B).
On the east side of Willis Avenue is this school at 510 Willis Avenue. The school's website is linked here.
On the west side of Willis Avenue is this school.