| Identifier   | Title | Level of description | Date | Digital object |  | 
                                  
              | 5-6 | Correspondence: Letters of congratulation on Thomson's appointment as Master of Trinity College, Cambridge | File | 10 Feb 1918 |  |  | 
                                  
              | 10 | Correspondence: Letters of congratulation on J. J. Thomson's appointment as Master of Trinity College, Cambridge | File | Undated |  |  | 
                                  
              | 12 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Apr-May 1918 |  |  | 
                                  
              | 17 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Mar-Apr 1919 |  |  | 
                                  
              | 21 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Nov 1919 |  |  | 
                                  
              | 22 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Dec 1919 |  |  | 
                                  
              | 25-26 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | May 1920 |  |  | 
                                  
              | 30 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Feb 1921 |  |  | 
                                  
              | 31 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Mar 1921 |  |  | 
                                  
              | 35 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Jun 1921 |  |  | 
                                  
              | 40-40A | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Nov 1921 |  |  | 
                                  
              | 42-43 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Jan 1922 |  |  | 
                                  
              | 44 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Feb 1922 |  |  | 
                                  
              | 56 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Sept 1924 |  |  | 
                                  
              | 58 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Nov 1924 |  |  | 
                                  
              | 63 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Oct-Dec 1925 |  |  | 
                                  
              | 67 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | 1929 |  |  | 
                                  
              | 74 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Dec 1931 |  |  | 
                                  
              | 87 | Invitations | File | Mar 1920 |  |  | 
                                  
              | 101 | Invitations: Including an invitation for Lady Thomson and her daughter Joan to Buckingham Palace on 21 May and 25 Jun | File | May-Jun 1924 |  |  | 
                                  
              | 107-108 | Invitations | File | Oct 1926 |  |  | 
                                  
              | 110 | Invitations | File | Apr-May 1927 |  |  | 
                                  
              | 112 | Invitations | File | Jan-Feb 1928 |  |  | 
                                  
              | 117 | Invitations | File | Oct-Dec 1929 |  |  | 
                                  
              | 118 | Invitations | File | May-Dec 1930 |  |  | 
                                  
              | 123 | Invitations | File | 1934 |  |  | 
                                  
              | 124-127 | Invitations | File | c 1929-1934 |  |  | 
                                  
              | 128 | Invitations | File | 1935-1938 |  |  | 
                                  
              | 41 | Correspondence: Received by J. J. Thomson as Master of Trinity College, Cambridge | File | Dec 1921 |  |  | 
                                  
              | 8 | Correspondence: Letters of congratulation on J. J. Thomson's appointment as Master of Trinity College, Cambridge | File | 12-16 Feb 1918 |  |  |