Use the Category drop down for most searches and the first search box for specific Digital Archive items about a person or subject, e.g. The Category ‘SDC Presidents’ will show data on SDC Presidents, whilst a Search for Perkin will bring up when he was President as well as a lot of other data. A search for Presidents instead of the Category SDC Presidents will generate no results however. The File Type box can be used to filter for only PDF files or only image files.
