Standard Gauge Great Western 4-4-0s Part 2O. S. Nock continues his account of the GWR 4 4 0s with a further look at G. J. Churchward and his programme of modernisation and standardisation, particularly in boiler design, and his introduction of the 'County' class the last of the new GWR designs. He goes on to describe the impact of two world wars; the implications for the 4 4 0 classes post Grouping, with particular regard to the Cambrian section; the start of withdrawals in the 1920s and the