- FondsMordell - Papers of Louis Joel Mordell
- Series1-40 - Letters
- File11 - Heilbronn
- Item11.1 - A.L.s., from J. E. Littlewood, Cambridge
- Item11.2 - A.L.s., from Berlin
- Item11.3 - T.L.s., from M. Stephany, Secretary, The Central Fund for German Jewry, London
- Item11.4 - A.L.s., from Germany
- Item11.5 - T.L.s., from A. J. Chakower, Joint Committee of the Board of Deputies of British Jews and the Anglo-Jewish Association, London
- Item11.6 - T.L.s., from Walter Moberly, Manchester University
- 20 more...