If you are looking for photos from the 1930s to 1950s, you may find the Picture Post Historical Archive, 1938–1957 useful. In the era before television, Picture Post became the window on the world for most people. It contains thousands of photos of ordinary people doing ordinary things and as such provides a fascinating snapshot of British life from the 1930s to the 1950s.
To access, simply search in iFind for Picture Post or follow the links from the Library Guides. If you need help searching the archive, email artslib@swansea.ac.uk.