Strachey made the trip in order to attend the Association for Computing Machinery Conference, 19-21 June 1957, in Houston, Texas. While in the US he also visited the Lincoln Laboratories of M.I.T., the I.B.M. Laboratory at Poughkeepsie, N.Y., the University of Illinois, the Remington Rand Laboratory in Philadelphia and Bryn Mawr College. Strachey kept a notebook recording details of these visits (staff, equipment, programs, procedures, specifications and design of machines) as well as notes of addresses, travel arrangements, expenses incurred, during his journey. This journal is an interesting record of the state of computing in the US at that time.

The folder also includes a small amount of correspondence regarding scheduling of visits and material collected at the conference.

See MS. Eng. misc. b. 258/C.33 for a similar notebook kept on Strachey's journey to Canada and USA in 1952.