Letter to Henry Phipps, February 14, 1905
Letter to Emanuel Libman, February 10, 1905
Letter to Charles Ferdinand Martin, February 6, 1905
Letter to J. Herbert Darey, February 2, 1905
Letter to Charles Ferdinand Martin, February 1, 1905
Letter to Thomas McCrae, January 28, 1905
Letter to Irving P. Lyon, January 20, 1905
Letter to James R. Chadwick, January 19, 1905
Letter to Leonard Rogers, January 19, 1905
Letter to Henry Phipps, January 18, 1905