- Černý MSS - Jaroslav Černý Collection
- Černý MSS 21 - Correspondence
- 208 more...
- Oliveros - Černý MSS 21.111 - Oliveros, Pilar - correspondence
- Omlin - Černý MSS 21.1559 - Omlin, Joseph A. - correspondence
- Parker - Černý MSS. 21.112-14, 1560-6, 2189-94 - Parker, Richard A. - correspondence
- Peck - Černý MSS 21.1567 - Peck, Caroline Nestmann - correspondence
- Pedersen - Černý MSS 21.1568-9 - Pedersen, Johannes - correspondence
- Peterson - Černý MSS 21.115-16, 1570 - Peterson, Bengt Julius - correspondence
- Petrovski - Černý MSS 21.1571-3, 2195 - Petrovski, Nikolai Sergeievitch - correspondence
- Piankoff - Černý MSS 21.1576-86, 2196-8 - Piankoff, Alexandre - correspondence
- Pinero - Černý MSS 21.1587-93 - Pinero, Enrique J. - correspondence
- 91 more...