There are two thematic indexes, in slightly different forms, covering the first series of the George Borrow Society Bulletins (1991–Spring 2010) and the second series (Autumn 2010 onwards). As the headings in these are different we have not been able to merge them, but you are welcome to copy and past them into a word processor and then use that to search them both in a single go.
Links to the indexes are on the left of the page.