WIA FC/1896/9/16 | Warburg, Aby to Warburg, Felix and Warburg, Frieda 27/03/1896 | acknowledges receipt of letters via Albuquerque, letters from mother and grandmother forwarded... |
WIA GC/1895/AMERICA/124 | Wise, Edmond, E. to Warburg, Aby 09/11/1895 | encloses a letter of introduction to his cousin Ernest A. Grunsfeld of Albuquerque |
WIA GC/1895/AMERICA/26 | Warburg, Aby to Fewkes, J. Walter 05/04/1896 | thanks him for his letter which he received in Flagstaff five days ago; he could not reply any... |
WIA GC/1895/AMERICA/38 | Grunsfeld, Ernest A. to Warburg, Aby 22/01/1896 | encloses his letter of introduction for Warburg to Mr. Graham |
WIA GC/1895/AMERICA/39 | Grunsfeld, Ernest A. to Warburg, Aby 02/03/1896 | he will forward Warburg's mail as directed; informs him of his travel plans |