Ries, Franz Anton
| Ferdinand Ries an Louis Spohr in Kassel | London, Dienstag 30. April 1822 | 1822043043 |
| Nikolaus Simrock an Louis Spohr in Kassel | Bonn, Montag 23. Mai 1823 | 1823052351 |
| Ferdinand Ries an Louis Spohr in Kassel | London, Dienstag 28. Oktober 1823 | 1823102843 |
| Louis Spohr an Nikolaus Simrock in Bonn | Kassel, Sonntag 20. Februar 1825 | 1825022021 |
| Nikolaus Simrock an Louis Spohr in Kassel | Bonn, Sonntag 22. Mai 1825 | 1825052251 |
| Louis Spohr an Hubert Ries in Berlin | Kassel, Montag 4. Juli 1825 | 1825070410 |
| Ferdinand Ries an Louis Spohr in Kassel | Godesberg, Dienstag 25. November 1825 | 1825112543 |
| Ferdinand Ries an Louis Spohr in Kassel | Frankfurt am Main, Freitag 26. September 1828 | 1828092643 |
| Ferdinand Ries an Louis Spohr in Kassel | Frankfurt am Main, Sonnabend 23. September 1837 | 1837092343 |