| RefNo | Title | Date |
| MM/16/118 | Letter from JG Kerr, Glasgow, to WB Hardy | 26 January 1925 |
| EC/1909/16 | Kerr, Sir John Graham: certificate of election to the Royal Society | |
| IM/GA/WS/3041 | Kerr, Sir John Graham | nd |
| NLB/40/710 | Copy letter from Robert William Frederick Harrison to Messrs Harrison & Sons | 16 July 1909 |
| NLB/19/34 | Copy letter from Robert William Frederick Harrison, to John Graham Kerr, Christ's College, Cambridge | 6 June 1899 |
| NLB/19/353 | Copy letter from Theodore E James, to John Graham Kerr, Christ's College Cambridge | 23 August 1899 |
| NLB/19/199 | Copy letter from Arthur William Rucker, to Sir John George Kerr, [Fellow of the Royal Society] | 11 July 1899 |
| NLB/18/706 | Copy letter from Robert William Frederick Harrison, to John Graham Kerr, [Fellow of the Royal Society], Christ's College, Cambridge | 26 April 1899 |
| NLB/19/60 | Copy letter from Robert William Frederick Harrison, to Edwin Wilson | 9 June 1899 |
| NLB/19/374 | Copy letter from Theodore E James, to John Graham Kerr, [Fellow of the Royal Society] | 4 September 1899 |
| NLB/20/103 | Copy letter from Robert William Frederick Harrison, to John Graham Kerr, [Fellow of the Royal Society] | 1 February 1900 |
| NLB/20/417 | Copy letter from Robert William Frederick Harrison, to John Graham Kerr, [Fellow of the Royal Society], Christ's College, Cambridge | 24 April 1900 |
| NLB/43/229 | Copy letter from Robert William Frederick Harrison, to Professor [John Graham] Kerr, Fellow of the Royal Society | 24 November 1910 |
| NLB/46/702 | Copy letter from John Rose Bradford, to Professor [John Graham] Kerr, Fellow of the Royal Society | 18 October 1912 |
| NLB/54/80 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [John] Graham Kerr, FRS | 3 February 1917 |
| NLB/50/478 | Copy letter from Robert William Frederick Harrison, to Professor [John] Graham Kerr, Fellow of the Royal Society | 15 July 1914 |
| NLB/52/28 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor John Graham Kerr FRS | 23 July 1915 |
| RR/20/36 | Referee's report by John Graham Kerr, on a paper 'On dimensions of chromosomes considered in relation to phylogeny' by John Bretland Farmer and L Digby | 16 November 1913 |
| RR/22/57 | Referee's report by John Graham Kerr, on a paper 'The development of the thymus, epithelial bodies, and thyroid in the marsupialia. Part I - Trichosurus vulpecula' by Elizabeth A Fraser and James Peter Hill | May 1915 |
| RR/22/55 | Referee's report by John Graham Kerr, on a paper 'The development of the thymus, epithelial bodies, and thyroid in the marsupialia. Part I - Trichosurus vulpecula' by Elizabeth A Fraser and James Peter Hill | May 1915 |
| RR/35/49 | Referee's report by John Graham Kerr, on a paper 'Studies on the relation of gonadic structure to plumage characterisation in the domestic fowl.—III. The laying hen with cock's plumage' by Francis Albert Eley Crew | April 1927 |
| RR/35/95 | Referee's report by John Graham Kerr, on a paper 'Studies on the relation of gonadic structure to plumage characterisation in the domestic fowl.—II. The developmental capon and poularde' by A W Greenwood and F A E Crew | March 1927 |
| NLB/58/643 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [John] Graham Kerr, FRS | 2 June 1920 |
| RR/38/52 | Referee's report by John Graham Kerr, on a paper 'Studies on the relation of gonadic structure to plumage characterisation in the domestic fowl. IV. - Gonad cross-transplantation in leghorn and campine' by A W Greenwood | March 1928 |
| NLB/58/888 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [John] Graham Kerr, FRS | 29 June 1920 |
| RR/14/187 | Referee's report by Albert Charles Lewis Gottgilf Günther, on a paper 'The external features in the development of Lepidosiren paradoxa, Fitz' by John Graham Kerr | nd [May 1899] |
| RR/14/186 | Referee's report by Walter Frank Raphael Weldon, on a paper 'The the external features the development of Lepidosiren paradoxa, Fitz' by John Graham Kerr | nd [May 1899] |
| RR/52/42 | Referee's report by John Graham Kerr, on a paper 'Studies in Tunicate development - Part III - Differential retardation and acceleration' by Norman John Berrill | August 1934 |
| RR/24/89 | Referee's report by John Graham Kerr, on a paper 'The structure, evolution and origin of the Amphibia. - The "orders' Rachitomi and Stereospondyli' by David Meredith Seares Watson | [April 1917] |
| RR/55/33 | Referee's report by John Graham Kerr, on a paper 'Studies in tunicate development. Part V - The evolution and classification of ascidians' by Norman John Berrill | June 1935 |
| RR/52/100 | Referee's report by John Graham Kerr, on a paper 'The development of patella vulgata' by F G W Smith | 4 July 1934 |
| RR/56/26 | Referee's report by John Graham Kerr, on a paper 'Studies of the epidermal structures of birds' by Anne Hosker | [June 1935] |
| RR/65/82 | Referee's report by John Graham Kerr, on a paper 'The origin and developmental mechanics of the avian sternum' by Honor Bridget Fell | 27 July 1938 |
| NLB/63/246 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [John] Graham Kerr, FRS | 22 July 1922 |
| NLB/68/99 | Copy letter from William Bate Hardy, Secretary of the Royal Society; to Professor [John] Graham Kerr, FRS | 11 May 1925 |
| NLB/66/790 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. J. Graham Kerr, FRS | 9 July 1924 |
| NLB/68/682 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [James Gordon] Gray | 13 October 1925 |
| NLB/71/466 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [John] Graham Kerr, FRS | 1 June 1928 |
| NLB/71/455 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [John] Graham Kerr, FRS | 30 May 1928 |
| CD/5/17 | Copy letter from the Royal Society, to Professor [John] Graham Kerr, Professor [John Stanley] Gardiner, Professor [James Thomas] Wilson, Sir [David] Prain, Dr [Arthur William] Hill, Sir Arthur Keith, Sir [Alfred Daniel] Hall, Professor [Robert] Newstead, Colonel [Henry George] Lyons, Dr [John William] Evans, Sir [Richard] Threlfall, Sir [John] Cadman | 18 January 1923 |
| NLB/73/173 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. [John] Graham Kerr, FRS | 26 January 1931 |
| NLB/19/685 | Copy letter from Robert William Frederick Harrison, to John Graham Kerr, [Fellow of the Royal Society] | 22 November 1899 |
| RR/39/21 | Referee's report by John Graham Kerr, on a paper 'Studies in tunicate development. Part I.— General physiology development of simple Ascidians' by Norman John Berrill | [December 1928] |
| RR/39/56 | Referee's report by John Graham Kerr, on a paper 'The vascular filaments on the pelvic limbs of Lepidosiren, their function and evolutionary significance' by J T Cunningham | [October 1929] |
| RR/49/14 | Referee's report by John Graham Kerr, on a paper 'The segmentation and chondrification of the skull of the duck' by Gavin Rylands De Beer and Ernest James William Barrington | [October 1933] |
| RR/52/43 | Referee's report by John Graham Kerr, on a paper 'Studies in tunicate development Part IV—Asexual reproduction' by Norman John Berrill | August 1934 |
| NLB/67/575 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Sidney [Frederic] Harmer, KBE, FRS | 23 January 1925 |
| NLB/52 | New Letter Book volume 52, copy letters sent from Royal Society administration | 9 July 1915-8 March 1916 |
| RR/33/29 | Referee's report by John Graham Kerr, on a paper 'A contribution to the anatomy of the ductless glands and lymphatic system of the angler fish (Lophius piscatorius)' by Richard Huggins Burne | December 1926 |
| RR/33/109 | Referee's report by John Graham Kerr, on a paper 'The development of the chondrocranium of the eel (anguilla vulgaris), with observations on the comparative morphology and development of the chondrocranium in bony fishes' by J R Norman | November 1925 |
| RR/39/65 | Referee's report by John Graham Kerr, on a paper 'Observations on electrical stimulation of the cerebellar cortex' by D Denny-Brown, J C Eccles and Edward George Tandy Liddell | nd [March 1929] |
| RR/45/35 | Referee's report by John Graham Kerr, on a paper 'Experimental researches on the emission of oxygen by the pelvic filaments of the male lepidosiren with some experiments on Symbranchus marmoratus' by J T Cunningham and D M Reid | [September 1931] |
| RR/19/116 | Referee's report by John Graham Kerr, on a paper 'Danish researches in the Atlantic and Mediterranean on the life-history of the Fresh-water Eel (Anguilla vulgaris, Turt.), with notes on other species' by J Schmidt | [April 1912] |
| RR/28/30 | Referee's report by John Graham Kerr, on a paper 'The development of the hepatic venous system and the postcaval vein in the marsupialia' by Margaret Tribe | nd [1922] |
| RR/35/55 | Referee's report by John Graham Kerr, on a paper 'The bionomics of certain air-breathing fishes of India, together with an account of the development of their air-breathing organs' by B K Das | August 1927 |
| RR/36/100 | Referee's report by John Graham Kerr, on a paper 'Structure and function of the organs of feeding and digestion in the septibranchs, Cuspidaria and Poromya' by Charles Maurice Yonge | [June 1927] |
| RR/41/22 | Referee's report by John Graham Kerr, on a paper 'Studies in tunicate development. Part I.— General physiology development of simple Ascidians' by Norman John Berrill | July 1930 |
| NLB/39/358 | Copy letter from Robert William Frederick Harrison to Professor Adam Sedgwick, Fellow of the Royal Society | 8 January 1909 |
| NLB/47/115 | Copy letter from Robert William Frederick Harrison to Professor J [John] Graham Kerr FRS | 3 December 1912 |