Hello Willa,
PS 721, The Richard Hungerford School is Special Education Cluster school, serving students between the ages of 12-21 on Staten Island. All students have significant or severe disabilities and require a high level of support and specialist services. There are significantly more male than female students. The school has one main site and there are five off-site schools where students may attend full or part time. Students with profound and multiple disabilities are supported in units within theses schools and wherever possible included in whole school activities.

Hi Willa,
I believe the school you are asking about is THE RICHARD H. HUNGERFORD SCHOOL. It is grades 6 to 12.
Their web address is http://schools.nyc.gov/SchoolPortals/31/R721/default.htm.