1880-1882 Box 1, Folder 1 Columbia University Archives Department of Astronomy records, 1880-1917Series I: Correspondence of John K. Rees, 1880-1902
1883-1891 Box 1, Folder 2 to 10 Columbia University Archives Department of Astronomy records, 1880-1917Series I: Correspondence of John K. Rees, 1880-1902
1892 January-May Box 1, Folder 11 Columbia University Archives Department of Astronomy records, 1880-1917Series I: Correspondence of John K. Rees, 1880-1902
1892 June-December Box 1, Folder 12 Columbia University Archives Department of Astronomy records, 1880-1917Series I: Correspondence of John K. Rees, 1880-1902
1893 January-May Box 1, Folder 13 Columbia University Archives Department of Astronomy records, 1880-1917Series I: Correspondence of John K. Rees, 1880-1902
1893 June-December Box 1, Folder 14 Columbia University Archives Department of Astronomy records, 1880-1917Series I: Correspondence of John K. Rees, 1880-1902
1894 January-May Box 1, Folder 15 Columbia University Archives Department of Astronomy records, 1880-1917Series I: Correspondence of John K. Rees, 1880-1902
1894 June-December Box 1, Folder 16 Columbia University Archives Department of Astronomy records, 1880-1917Series I: Correspondence of John K. Rees, 1880-1902
1895 Box 1, Folder 17 Columbia University Archives Department of Astronomy records, 1880-1917Series I: Correspondence of John K. Rees, 1880-1902
1895 Box 1, Folder 18 Columbia University Archives Department of Astronomy records, 1880-1917Series I: Correspondence of John K. Rees, 1880-1902