| RefNo | Title | Date |
| EC/1904/07 | Joly, Charles Jasper: certificate of election to the Royal Society | |
| RR/15/357 | Referee's report by Olaus Magnus Friedrich Erdmann Henrici, on a paper 'Quaternions and projective geometry' by Charles Jasper Joly | December 1902 |
| NLB/23/2/313 | Copy letter sent from Joseph Larmor, to Professor Charles Jasper Joly, [Fellow of the Royal Society] | 20 March 1903 |
| NLB/25/833 | Copy letter from Joseph Larmor, to Professor Charles Jasper Joly, [Fellow of the Royal Society] | 8 January 1903 |
| NLB/26/359 | Copy letter from Robert William Frederick Harrison to, Professor Charles Jasper Joly, Fellow of the Royal Society | 7 March 1903 |
| NLB/29/317 | Copy letter from Robert William Frederick Harrison, to Professor Charles Jasper Joly, Fellow of the Royal Society | 20 September 1904 |
| NLB/32/110 | Copy letter from Robert William Frederick Harrison, to [Messrs Harrison & Sons] | 5 January 1906 |
| NLB/29/330 | Copy letter from Robert William Frederick Harrison, to Professor Charles Jasper Joly, Fellow of the Royal Society | 23 September 1904 |
| NLB/31/267 | Copy letter from Joseph Larmor, to Professor Charles Jasper Joly, Fellow of the Royal Society, Secretary, Royal Irish Academy | 17 July 1905 |
| NLB/32/210 | Copy letter from Robert William Frederick Harrison, to Professor Joseph Larmor, Secretary, Royal Society | 29 January 1906 |
| RR/15/356 | Referee's report by George Ballard Mathews, on a paper 'Quaternions and projective geometry' by Charles Jasper Joly | December 1902 |
| MC/19/499 | Letter from [Charles Jasper] Joly, Trinity College Observatory, Dunsink, Co., Dublin, to [Robert William Frederick] Harrison | 30 September 1904 |
| MC/19/496 | Letter from [Charles Jasper] Joly, Dunsink, Co. Dublin, to the Royal Society | 2 September 1904 |
| MC/19/498 | Letter from [Charles Jasper] Joly, Trinity College Observatory, Dunsink, Co., Dublin, to [Robert William Frederick] Harrison | 22 September 1904 |