| RefNo | Title | Date |
| L/E/51/102 | Letters \ Correspondence with Felicia Sachs, New York | 14 December 1946 | 15/05/1947 |
| L/E/52/58 | Letters \ Letter to Felicia Sachs | 12 May 1941 |
| L/E/51/81 | Letters \ Letter to Felicia and Hans Sachs, Boston | 1941 |
| L/E/69/64 | Biographical Information \ Rudolf Laban \ Correspondence between Lisa Ullmann, Felicia Sachs and Hans Sachs | 04/01/1965-24/02/1965 |
| L/E/51/94 | Letters \ Correspondence with Felicia and Hans Sachs | 23 February 1941-17 June 1957 |