| RefNo | Title | Source |
| DF/ZOO/200/63/14 | Bedford, Duchess of [Russell, Dame Mary Du Caurruy, 1865-1937] (Woburn) | |
| DF/TR/1/1/34/38 | Bedford, Mary Russell, Duchess of | |
| DF/TR/1/1/29/55 | Bedford, Mary Russell, Duchess of | |
| DF/TR/1/1/32/34 | Bedford, Mary Russell, Duchess of | |
| DF/TR/1/1/26/40 | Bedford, Mary Russell, Duchess of | |
| DF/ZOO/230/34/4 | Bedford, Duchess of [Mary Du Caurruy Russell] | |
| DF/TR/1/1/25/32 | Bedford, Mary Russell, Duchess of | |
| DF/ZOO/232/2/3 | Lydekker, Richard: correspondence, 1899-1913 | |