1. [Carta] 1933 ago. 4, San Juan, [Puerto Rico] [a] Gabriela Mistral, Madrid, España

2. [Carta] 1934 ene. 25, San Juan, Puerto Rico [a] Gabriela Mistral

3. [Carta] 1934 ene. 25, San Juan, Puerto Rico [a] Gabriela Mistral, Madrid, España

4. [Carta] 1934, [Puerto Rico] [a] Margot Arce, Río Piedras, Puerto Rico

5. [Carta] 1946 abr. 22, Boston [a] Gabriela Mistral, Los Angeles, California

6. [Carta] 1948 abr. 27, [Boston, Massachusetts] [a] Gabriela Mistral, Los Angeles, California