Box: 7, 1833 - 1907

General Correspondence: K-Z: J.C. Kapteyn, H. Kayser, J.E. Keeler, Baron William Thomson Kelvin, Jefferson E. Kershney, Fred L. Kingsbury, Daniel Kirkwood, Wilhelm Klinckers, Charles Krauss, Kruess, S.P. Langley, Ernest Lebon, L.P. Leeds, F.W. Levander, Thomas Lister, G.D. Liveing, Cayetam Lobaton, Norman Lockyer, Edmund G. Loder, Oswald Lohse, G. Lorenzoni, Augustus Lowell, John A. Lowell, Caroline McCandlish, Cyrus H. McCormick Jr., James McCosh,... R.W. McFarland, Scott McLanahan, John Bach McMaster, Malcolm McNeill, Hector MacPherson, L. Malis, R.H. Manners, Regarding manuscript of "God's Glory in the Heavens", A. Marruse, O.C. Marsh, Nevil Maskelyne, E. Walter Maunder, H.S. Maxium, Alfred M. Mayer, David Mazie, E.F. Mead, T.C. Mendenhall, Dayton C. Miller, A.D. Morgan, P. Morosoff, Paul Morozow, Justin L. Morrill, J. Morrison, Henry Morton, David Murray, H.F. Newall, Mary Hassler Newcomb, Simon Newcomb, H.A. Newton, A. Frances Nichols, A.A. Nyland, Hannah Noble, William Noble, James Edward Oliver, Joseph O'Malley, F. Orm, E.C. Osborn, Oudemans, Parkinson and Frodsham, Francis Patten, William W. Payne, T.E. Peal, F.C. Penrose, Ira Perley, S.J. Perry, C.H.F. Peters, Otto Petterson, M.E. Phelps, Edward C. Pickering, Benjamin Pierce, John Pierce, William M. Pierson, Sadie B. Pillsbury, William E. Plummer, Sarah Porter, S.B. Poulton, B.F. Prescott, Princeton Club of Philadelphia, Mary Proctor, Redfield Proctor, Richard A. Proctor, Walter Pye, E.T. Quimby, A.C. Raynard, M.G. Rayet, J.K. Rees, Thomas Reye, V.L. Ricci, Isaac Roberts, William B. Rogers, H.E. Roscoe, Rosen, William Parsons Earl of Rosse, H.A. Rowland, P. Sacchini, Rollin A. Sawyer, J.M. Schaeberle, Dr. Scheller, L. Schulhof, T.F. Herman Schulz, V. Schumann, Arthur Schuster, A. Secchi, T.J.J. See, N.P. Seymour, W. Shackleton, Benjamin Silliman Sr., Robert Smart, Lucy M. Smith, C. Piazzi Smyth, N.B. Snyder, Serge Socolow, Edmund J. Spitta, Spoerer, C.W. Stevens, L.B. Stillwell, Mrs. George P. Stone, Auguste and Hermann Struve, Helen T. Swayne, Kenneth J. Tarrent, John Tate, Bayard Taylor, Arthur C. Thomas, Charles M. Thompson, A. Thraen, M. Thury, Charles F. Thwing, E.L. Trauvelot, John Trowbridge, H.H. Turner, J. Baxter Upham, Valentine 1893, Felipe Valle, J.M. van Bleck, Henry van Dyke, M.A. Veeder, Charles S. Venable, Frank W. Very, H.C. Vogel, M.R.Wait, Leonard Waldo, Mary E. Walker, Warner and Swasey, C.B. Warring, Booker T. Washington, James C. Watson, John Watson, James W. Watts, Charles K. Wead, G.M. Whipple, J.D. Whitney, Mary W. Whitney, Charles T. Whitwell, Woodrow Wilson, William Windom, Joseph Winlock, B. Witkowsky, Max Wolf, DeVolsom Wood, J. Anthony Wood, mary E. Wooley, Augusta Mixer Young, Charles A. Young, Charles Ira Young, Fred Young, Samuel M. Young, Friedrich Zoellner