Spohr, Louis : Schill, Mch Blasorch, WoO 71
| Louis Spohr an Adolph Hesse in Breslau | Kassel, Sonnabend 4. April 1840 | 1840040401 |
| Louis Spohr an Wilhelm Speyer in Frankfurt am Main | Kassel, Sonntag 10. Januar 1841 | 1841011002 |
| Wilhelm Speyer an Louis Spohr in Kassel | Frankfurt am Main, Sonntag 17. Januar 1841 | 1841011732 |
| Louis Spohr an Wilhelm Speyer in Frankfurt am Main | Kassel, Montag 1. Februar 1841 | 1841020102 |
| Christian Friedrich Lueder an Louis Spohr in Kassel | Katlenburg, Donnerstag 10. April 1845 | 1845041035 |