44. During World War II, as many as 7,000 detainees and "internees" were held at the Island.
45. Under the Geneva Conventions, war prisoners were permitted to have an advocate speak for them.
46. Once registered, immigrants were free to enter the New World and start their new lives. But if they were sick, they spent days, weeks, months even, in a warren of rooms. Some, like the tuberculosis ward, were open to the sea, where a gentle New York harbor breeze cleansed their lungs, improving their chances. Other rooms were solitary, forlorn places where the illness itself decided when to leave or stay. Most patients in the hospital or Contagious Disease Ward recovered, but some were not so lucky. More than 120,000 immigrants were sent back to their countries of origin, and during the island's half-century of operation more than 3,500 immigrants died there.
47. 350
48. 3,500
49. In 1954, after 62 years of operation, Ellis Island was closed by the Immigration and Naturalization Service. For ten years, the Main Building stood vacant. Vandals made off with anything they could carry, from doorknobs to filing cabinets. Snow swirled through broken windows, roofs leaked, weeds sprang up in corridors, and interior walls soaked up harbor moisture like sponges. In 1965, Ellis Island became part of the Statue of Liberty National Monument, overseen by the National Park Service. Nearly thirty years later, in 1990, the Main Building was fully restored and opened as the Immigration Museum.
These are my best gueses.