Aberdeen, George Hamilton Gordon
| Christian Friedrich Lueder an Louis Spohr in Kassel | Wiesbaden, Montag 12. November 1838 | 1838111235 |
| Edward Taylor an Louis Spohr in Kassel | Stoke Ferry, Dienstag 29. März 1842 | 1842032934 |
| Louis Spohr an Edward Taylor in London | Kassel, Freitag 10. Juni 1842 | 1842061004 |
| Louis Spohr an Adolph Hesse in Breslau | Kassel, Donnerstag 16. Juni 1842 | 1842061601 |
| Louis Spohr an Adolph Hesse in Breslau | Karlsbad, Freitag 8. Juli 1842 | 1842070801 |
| Louis Spohr an Ignaz Moscheles in London | Kassel, Dienstag 16. August 1842 | 1842081612 |
| Louis Spohr an Friedrich Rochlitz in Leipzig | Kassel, Dienstag 13. September 1842 | 1842091306 |
| Franz Joseph Keppner an Louis Spohr in Kassel | St. Georgen, Sonntag 21. Dezember 1851 | 1851122146 |
| Louis Spohr an das Theater in Frankfurt am Main | Frankfurt am Main, Donnerstag 30. September 1858 | 1858093019 |