| RefNo | Title | Date |
| EC/1947/09 | Duncan, William Jolly: certificate of election to the Royal Society | |
| IM/GA/WS/2629 | Duncan, William Jolly | 1946 |
| RR/43/18 | Referee's report by Leonard Bairstow, on a paper 'On the torsion of cylinders of symmetrical section' by William Jolly Duncan | January 1932 |
| RR/71/204 | Referee's report by William Jolly Duncan, on a paper 'Note on stability of laminar viscous flow between parallel planes' by D Meksyn | 1948 |
| RR/70/179 | Referee's report by William Jolly Duncan, on a paper 'The laminar boundary-layer equations II. Integration of non-linear ordinary differential equations' by D Meksyn | 1947 |
| RR/71/202 | Referee's report by William Jolly Duncan, on a paper 'Integration of the boundary-layer equations for a plane in a compressible fluid' by D Meksyn | 1948 |
| RR/70/181 | Referee's report by William Jolly Duncan, on a paper 'The laminar boundary-layer equations, I. Motion of an elliptic and circular cylinders' by D Meksyn | 1947 |
| RR/70/180 | Letter from William Jolly Duncan, on a paper 'The laminar boundary-layer equations II. Integration of non-linear ordinary differential equations' by D Meksyn to David Christie Martin, Assistant Secretary of the Royal Society | 23 September 1947 |
| RR/72/117 | Referee's report by William Jolly Duncan, on a paper 'The numerical solution of elliptic differential equations when the boundary conditions involve a derivative' by L Fox | 1949 |
| RR/70/184 | Referee's report by William Jolly Duncan, on a paper 'The laminar boundary-layer equations of bodies of revolution. Motion of a sphere' by D Meksyn | 5 February 1948 |
| RR/38/25 | Referee's report by Edmund Taylor Whittaker, on a paper 'On the criteria for the stability of small motions' by Robert Alexander Frazer and William Jolly Duncan | May 1929 |
| RR/38/24 | Referee's report by Edmund Taylor Whittaker, on a paper 'On the numerical solution of equations with complex roots' by Robert Alexander Frazer and William Jolly Duncan | May 1929 |
| RR/79/292 | Referee's report by William Jolly Duncan, on a paper 'The lift and moment acting on a thick aerofoil in unsteady motion' by L C Woods | 9 January 1954 |
| RR/77/89 | Referee's report by William Jolly Duncan, on a paper 'The measurement of skin friction in a turbulent boundary layer at a Mach number of 2.5, including the effect of a shock wave' by W F Cope | 9 June 1952 |
| RR/77/191 | Referee's report by William Jolly Duncan, on a paper 'The numerical solution of non-singular linear integral equations' by L Fox and E T Goodwin | 20 October 1952 |
| RR/77/192 | Letter from William Jolly Duncan, on a paper 'The numerical solution of non-singular linear integral equations' by L Fox and E T Goodwin, to D C Martin, assistant secretary of the Royal Society | 5 November 1952 |