 Although the Martin family lost much of its fortune due to the Great Depression and was forced to abandon the city house in 1937, they kept Graycliff, and returned annually until 1943.The property was purchased from the family by the Piarists, a Roman Catholic teaching order, in 1951.The Piarist Fathers, from Hungary, established a boarding school on the grounds, as well as Calasanctius, a private high school for gifted children in Buffalo, named after the order's founder.