| RefNo | Title | Date |
| IM/003784 | Rendle, Alfred Barton | |
| IM/Maull/003783 | Rendle, Alfred Barton | |
| NLB/40/709 | Copy letter from Robert William Frederick Harrison to Messrs Harrison & Sons | 16 July 1909 |
| NLB/4/853 | Copy letter from Herbert Rix, to Alfred Barton Rendle, British Museum (Natural History) | 12 November 1890 |
| NLB/4/877 | Copy letter from Herbert Rix, to Alfred Barton Rendle, British Museum (Natural History) | 18 November 1890 |
| NLB/67/639 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [John] McLean Thompson; The University, Liverpool | 5 February 1925 |
| NLB/37/233 | Copy letter from Robert William Frederick Harrison to Professor S [Sidney Howard] Vines FRS | 18 February 1908 |
| NLB/43/296 | Copy letter from Robert William Frederick Harrison, to Dr Alfred Barton Rendle, Fellow of the Royal Society | 6 December 1910 |
| NLB/43/252 | Copy letter from Robert William Frederick Harrison, to Dr Alfred Barton Rendle, Fellow of the Royal Society | 29 November 1910 |
| NLB/51/222 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Dr Alfred Barton Rendle FRS | 15 January 1915 |
| NLB/63/33 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [Alfred Barton] Rendle, FRS | 16 June 1922 |
| NLB/67/429 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Dr [Alfred Barton] Rendle, FRS | 18 December 1924 |
| NLB/65/611 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Dr [Alfred Barton] Rendle, FRS | 29 November 1923 |
| NLB/67/677 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr [Alfred Barton] Rendle, FRS | 13 February 1925 |
| NLB/69/411 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [Alfred Barton] Rendle, FRS | 29 March 1926 |
| NLB/65/786 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Albert Charles] Seward, FRS | 2 January 1924 |
| NLB/66/182 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [Francis Wall] Oliver FRS | 10 March 1924 |
| NLB/69/590 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [Alfred Barton] Rendle, FRS | 12 June 1926 |
| NLB/66/371 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir [Albert Charles] Seward, FRS | 28 April 1924 |
| NLB/66/437 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to [Alfred Barton] Rendle, FRS | 8 May 1924 |
| NLB/68/471 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr [Alfred Barton] Rendle, FRS | 15 July 1925 |
| NLB/70/26 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr [Alfred Barton] Rendle, FRS | 6 December 1926 |
| NLB/69/275 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir [Tannatt William] Edgeworth David, K.B.E, C.M.G, FRS | 19 February 1926 |
| NLB/69/940 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [Alfred Barton] Rendle, FRS | 20 November 1926 |
| NLB/69/427 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to L.W Sharp Esq., Cornell University, Ithaca, [New York] | 13 April 1926 |
| EC/1909/20 | Rendle, Alfred Barton: certificate of election to the Royal Society | |