P3 Mrs. Shaw By shawm Jan 1, 1892 Ellis Island Immigration Ellis Island opens. Seventeen-year-old Annie Moore, from County Cork, Ireland was the first immigrant to be processed at the new federal immigration depot. Period: Jan 1, 1892 to Nov 25, 1924 Ellis Island Is Open Dec 31, 1924 Immigration Traffic Slows Period: Oct 24, 1929 to Dec 31, 1939 The Great Depression Nov 25, 2014 When You Immigrated!