Haining wrote that the school had 400 pupils ranging from six to 16; 30–40 of them were boarders, either live-in or day boarders. These were the girls for whom Haining was responsible. Although Hungarian law did not allow religious conversion before the age of 18, she wrote, the school aimed to prepare its Jewish students for conversion to Christianity. The daily Bible lesson for all pupils included study of the New Testament. Haining made efforts to have part of the building converted to club rooms, so that the evangelical work could continue for girls who had left the school, as most did when they were 14 or 15.