Documents whose date range includes April 1912April 1, 1912April 2, 1912April 3, 1912April 4, 1912April 6, 1912April 7, 1912April 8, 1912April 9, 1912April 10, 1912April 11, 1912April 12, 1912April 13, 1912April 14, 1912April 16, 1912April 17, 1912April 18, 1912April 19, 1912April 20, 1912April 21, 1912April 22, 1912April 24, 1912April 26, 1912April 27, 1912April 28, 1912April 29, 1912April 30, 1912