Individuals represented in Bixby's personal correspondence include Lawrence F. Abbott, Elmer Bragg Adams, Henry Augustus Brudenall-Bruce, 5th Marquess of Ailesbury, J.R. Aitken, Edwin Anderson Alderman, Charles Dexter Allen, Abram Piatt Andrew, William Loring Andrews, John Dustin Archbold, W.E. Baillie, Baillie's Institution, Erwin S. Barrie, Bernard Quaritch, Firm, John Bianchi, John Shaw Billings, Hiram Bingham, Edwin Howland Blashfield, Henry Stiles Bradley, Ira Hutchinson Brainerd, Clarence Saunders Brigham, William Brown, Adolphus Busch, J.L. Buskett, Wm. C. Buskett, Wm. N.C. Carlton, Andrew Carnegie, Stephen Grover Cleveland, Harris D. Colt, Sidney Colvin, Thomas Augustine Daly, Charles A. Decker, Alice P. DeHasse, Thomas W. Dewing, Franklin Dickey, Wm. K. Dickson, George Francis Dow, H. Rieman Duval, R. Henry W. Dwight, Edmund Henry Eitel, Ezsex Institute, Julia Sutherland Field, Roswell Martin Field, Joseph Wingate Folk, Worthington Chauncey Ford, Harry Buxton Forman, David Rowland Francis, Daniel Chester French, Mrs. Edwin D. French (Mary), Edwin David French, John P. Frieden, Robert Singleton Garnett, Frederick T. Gates, George Jay Gould, Thomas Watt Gregory, Henry Guppy, Frank Wakeley Gunsaulus, Henry Howard Harper, Henri Harpignies, Albert B. Hart, Burton Jesse Hendrick, Henry Sotheran, Firm, Louis Hertle, Walter M. Hill, Ethan Allen Hitchcock, Herbert Hoover, David Franklin Houston, Joseph J. Houwink, Elbert Hubbard, Henry E. Huntington, Charles L. Hutchinson, Abraham Jacobi, Francis J.H. Jenkinson, Clare Jerrold, Walter Copeland Jerrold, Geo. S. Johns, Robert Underwood Johnson, Francis W. Kelsey, Charles Welbourne Knapp, M. Knoedler, Firm, Theodore W. Koch, Arthur A. Kocian, Frederick H. Kreismann, John LaFarge, Gardiner Martin Lane, Wm. C. Lane, Henry W. Lanier, Richard H. Lawrence, John Davison Lawson, James Wideman Lee, Frederick Wm. Lehmann, Paul Lemperly, Robert Todd Lincoln, Clarence C. Little, Charles Dealtry Locock, Henry Cabot Lodge, Amy Lowell, John Livingston Lowes, Edward Verrall Lucas, Wm. Gibbs McAdoo, V.F. McCalchy, Wallace MacMullen, Falconer Madan, Edwin Markham, Edward Percival Merritt, Sir Humphrey Summer Milford, Richard E. Miller, Edwin Knox Mitchell, Silas Weir Mitchell, Wm. Samuel Morse, Sir John Murray, John Murison, Charles Nagel, Alfred Edward Newton, Charles Dyer Norton, Sir Wm. Osler, Cora Herndon Painter, Sir Horatio Gilbert Parker, George F. Peabody, John Pickard, Henry Smith Pritchett, Herbert Putnam, Howard Pyle, Wm. A. Read, James A. Reed, Wm. Marion Reedy, Elisabeth Mills Reid, Whitelaw Reid, Geo. H. Richmond, Ernest Cushing Richardson, James Whitcomb Riley, Theodore Roosevelt, Elihu Root, Wm. Michael Rossetti, Henry Sherburne Rowe, Wm. H. Sampson, F. B. Sanborn, Walter Henry Sanborn, Charles M. Schwab, John C. Schwab, Sir John Shelley, Samuel Luckett Sherer, John Franklin Shields, Wm. Green Shillaber, Clement King Shorter, Francis H. Smith, Wm. R. Smith, Edwin Wm. Stephens, B.F. Stevens, Firm, Walter B. Stevens, Melville Elijah Stone, James Sullivan, Baroness Bertha von Suttner, Egerton Swarthout, Florence G. Sylvester, Frederick Oakes Sylvester, Wm. H. Taft, Wm. Watts Taylor, Slason Thompson, Kate Nichols Trask, Dwight Wm. Tryon, Emory S. Turner, Gabriel Weis, Wm. Henry Welch, Wellesley College, Harry Elkins Widener, Francis Wilson, Mary H. Wilson, George Parker Winship, John P. Woodbury, Sir Charles Theodore Wright, Lucien Wulsin.