Mawkes, Thomas
| Thomas Mawkes an Louis Spohr in Kassel | Belper, Donnerstag 20. August 1835 | 1835082040 |
| Louis Spohr an Franz Götze in Pößneck | Kassel, Dienstag 16. November 1830 | 1830111610 |
| Louis Spohr an Bernhard Hausmann in Hannover | Kassel, Sonntag 10. April 1831 | 1831041017 |
| Cipriani Potter an Louis Spohr in Kassel | London, Freitag 1. November 1833 | 1833110143 |