| Reference number | Title | Date |
| EC/1909/01 | Hale, George Ellery: certificate of election to the Royal Society | |
| NLB/39/152 | Copy letter from Robert William Frederick Harrison to Professor G [George] E [Ellery] Hale | 3 December 1908 |
| NLB/40/292 | Copy letter from Robert William Frederick Harrison to Messrs Harrison & Sons | 17 May 1909 |
| NLB/40/293 | Copy letter from Robert William Frederick Harrison to Messrs Harrison & Sons | 17 May 1909 |
| NLB/46/580 | Copy letter from Robert William Frederick Harrison, to Professor [George Ellery] Hale, Foreign Member of the Royal Society, Astrophysical Observatory, Pasadena, California, USA | 27 September 1912 |
| NLB/47/216 | Copy letter from Robert William Frederick Harrison to Professor G [George] E [Ellery] Hale, For.Mem.RS | 18 December 1912 |
| NLB/56/183 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor [George Ellery] Hale, FRS | 9 December 1918 |
| NLB/58/818 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [George Ellery] Hale, FRS | 22 June 1920 |
| NLB/55/515 | Copy letter from [Dr.] Arthur Schuster, Secretary of the Royal Society; to [Professor] H.A. Bumstead, c/o The American Embassy | 09 May 1918 |
| NLB/62/163 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [George Ellery] Hale, FRS | 13 December 1921 |
| NLB/65/634 | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor [George Ellery] Hale, FRS | 1 December 1923 |
| NLB/65/648 | Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to the President of the University of California | 3 December 1923 |
| MC/19/646 | Letter from George Ellery Hale, National Academy of Sciences, Committee on Solar Research, Pasadena, to Professor [Joseph] Larmor, Secretary of the Royal Society | 8 July 1904 |
| MC/19/645 | Letter from George Ellery Hale, National Academy of Sciences, Committee on Solar Research, Pasadena, to the President and Council of the Royal Society | 3 June 1904 |
| MC/27/151 | Letter from George [Ellery] Hale, Foreign Secretary, National Academy of Sciences, Office of the Foreign Secretary, Pasadena, California, to Sir Joseph Larmor, Secretary, Royal Society, Burlington House, London, W | 27 August 1912 |
| MC/27/152 | Letter from George [Ellery] Hale, Foreign Secretary, National Academy of Sciences, Office of the Foreign Secretary, Pasadena, California, to Robert Harrison, [Assistant] Secretary, Royal Society, Burlington House, London, W, England | 14 October 1912 |
| MC/28/122 | Letter from [George Ellery] Hale, National Academy of Sciences, Office of the Foreign Secretary, Pasadena, California, to Robert Harrison, Esquire, Assistant Secretary, Royal Society Burlington House, London | 10 January 1913 |
| MC/19 | Volume 19 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1904 |
| MC/23/202 | Letter from George [Ellery] Hale, Carnegie Institution of Washington, Mount Wilson Solar Observatory, Pasadena, California, to Dr [Joseph] Larmor, Secretary, Royal Society, Burlington House, London | 24 February 1908 |