- Černý MSS - Jaroslav Černý Collection
- Černý MSS 21 - Correspondence
- 118 more...
- James, F. W. - Černý MSS 21.1132-3 - James, Frances W. - correspondence
- James, T. G. H. - Černý MSS 21.88-90, 1134-63, 2415-18 - James, Thomas Henry Garnet (Harry) - correspondence
- Janda - Černý MSS 21.1164-6 - Janda, Bohumil - correspondence
- Janssen, Jac. J. - Černý MSS 21.1167-83 - Janssen, Jacobus J. - correspondence
- Janssen, Jozef M. A. - Černý MSS 21.1184-97 - Janssen, Pater Jozef Marie Antoon - correspondence
- Jelínková - Černý MSS 21.1198-206 - Jelínková, Eva (Eve Reymond) - correspondence
- Jonckheere - Černý MSS 21.1207-8 - Jonckheere, Frans - correspondence
- Jones - Černý MSS 21.1209-10 - Jones, J. W. - correspondence
- Jouguet - Černý MSS 21.91, 1211 - Jouguet, Felix, A. - correspondence
- 181 more...