Correct OCR displaying the Long s as an f
In the older newspapers its difficult to find keywords that include the letter s.
I agree with this idea. Additionally, this can be solved using "Regular Expression" (regex) technology, which is free.
I explain more in my suggestion on this site at https://help-and-advice.britishnewspaperarchive.co.uk/forums/243749-website-improvements/suggestions/38737225-allow-searches-to-be-specified-using-regular-expr