| RefNo | Title | Date |
| EC/1912/13 | Newstead, Robert: certificate of election to the Royal Society | |
| EC/1912/12 | Newstead, Robert: certificate of election to the Royal Society | |
| NLB/70/269 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Robert] Newstead, FRS | 21 February 1927 |
| MS/53 | Some papers of Robert Newstead | 1900-1901 |
| NLB/52/713 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor Robert Newstead, FRS | 18th February 1916 |
| NLB/55/477 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Robert] Newstead, FRS | 19 April 1918 |
| NLB/54/150 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [William Abbott] Herdman, Foreign Secretary of the Royal Society and FRS | 19 February 1917 |
| NLB/57/300 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Accountant, the University of Liverpool | 10 October 1919 |
| NLB/47/671 | Copy letter from Robert William Frederick Harrison to Robert Newstead FRS | 11 March 1913 |
| NLB/54/543 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Robert] Newstead, FRS | 14 June 1917 |
| NLB/54/196 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Robert] Newstead, FRS | 1 March 1917 |
| NLB/56/431 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [Robert] Newstead, FRS | 12 February 1919 |
| NLB/60/60 | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to Professor [Robert] Newstead, FRS | 6 December 1920 |
| NLB/54/93 | Copy letter from [Robert William Frederick Harrison, Assistant Secretary of the Royal Society]; to Professor [Robert] Newstead, FRS | 7 February 1917 |
| NLB/67/305 | Copy letter from Francis Alexander Towle, Assistant Secretary and Librarian of the Royal Society; to Professor [Robert] Newstead, FRS | 3 December 1924 |
| RR/22/32 | Referee's report by Robert Newstead, on a paper 'Insect association of a local environmental complex in the district of Holmes Chapel' by Alfred E Cameron | 15 January 1916 |
| RR/28/19 | Referee's report by Robert Newstead, on a paper 'Researches upon the Larch chermes (Cnaphalodes strobilobius, Kalt.), and their bearing upon the evolution of the Chermesinae in general' by Edward R Speyer | [June 1922] |
| NLB/62/868 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Robert] Newstead, FRS | 23 May 1922 |
| NLB/57/323 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor W [Sir William Abbott] Herdman, FRS, Foreign Secretary of the Royal Society | 16 October 1919 |
| NLB/68/367 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [Robert] Newstead, FRS | 29 June 1925 |
| NLB/70/292 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to the Honorary Secretaries of the Royal Microscopical Society; 20 Hanover Square, W.1. | 23 February 1927 |
| 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 |
| IM/003257 | Newstead, Robert | nd |
| NLB/57 | New Letter Book volume 57, copy letters sent from Royal Society administration | 27 June 1919-27 February 1920 |