Ingersoll, Robert Green, Associated date(s): 1833-1899 Letter Brandes, Georg Morris Cohen,; Ingersoll, Robert Green,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Read more about Letter Papers Haeckel, Ernst,; Devrient, Otto,; Ingersoll, Robert Green,; Lees, George Frederic William,; Paine, Thomas,; Wollweber, Otto,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Read more about Papers Papers Ingersoll, Robert Green,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Read more about Papers
Associated date(s): 1833-1899 Letter Brandes, Georg Morris Cohen,; Ingersoll, Robert Green,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Read more about Letter Papers Haeckel, Ernst,; Devrient, Otto,; Ingersoll, Robert Green,; Lees, George Frederic William,; Paine, Thomas,; Wollweber, Otto,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Read more about Papers Papers Ingersoll, Robert Green,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Read more about Papers
