Report No. 2, April 9th 1949,reporting on a visit by John Pinkerton and John Simmons to Cambridge University on 17th March 1949 to see a demonstration of EDSAC’s first working, leading directly to the decision for Lyons to commence the LEO project. Modern Records Centre, Warwick University, 3 pages, MSS.363/S4/2/1/61support the EDSAC project.