About a year ago, I blogged about street directories produced both by the Post Office and their availability online at the National Library of Scotland and as maps at AddressingHistory.
Trade and street directories are useful in confirming information found in the census or as an alternative to valuation rolls.
My recommendation in our Kith and Kin columns in the Border Telegraph and Peeblesshire News newspapers was a collection of freely downloadable Scottish directories , however there’s an easier source on the National Library’s page of Post Office directories, (for Borders localities, choose Scotland).
I’ve now discovered another useful website that contains local and trade directories for England and Wales between 1750 to 1919. You can search by decade (1850s to 1910s), by location or by keywords (a combination of location, decade, and other details) and the directories are free to read and print, however you can print only one page at a time.