The aim of this survey was to discover the rate of occupational, industrial and geographical change in the employed population in Great Britain in 1949, to compare it with the frequency and change in the past and to ascertain the factors associated with change. Data were collected on the rate of change between occupations and industries, the advantages and disadvantages of change to the individuals, and the long-term problem of the movement of manpower between declining industries and growing industries. Data ConversionThese data were converted to current UKDS formats in December 2022. Due to the age of these data, they should be analysed with caution. While every effort is made to ensure data integrity, some parts of the data may not match the documentation, due to the age and condition of the original materials.