- Suri Vidyasagar College, Suri, Birbhum, 731101, West Bengal, India33
- Centro de Documentação Histórica do Baixo Amazonas31
- Universidade Federal do Oeste do Pará31
- McMillan Memorial Library (Nairobi, Kenya)15
- Fazenda Ibicaba (Cordeirópolis, SP)12
- University of California, Los Angeles. Library. Department of Special Collections7
- Zik's Library, Onuiyi Haven7
- The Ralph J. Bunche Center for African American Studies5
- Barbados Department of Archives2
- Confederación Campesina del Perú (CCP)2
- Archivo de la Oficina de Derechos Humanos del Arzobispado1
- Zik’s Library, Onuiyi Haven1