Hello Bethan,and Heddwch, I think I set out my question incorrectly.I know there is a Blaenllechau Road,and where it is.In fact I drove through it this morning.The point I was trying to make was, I can't find it on the 1901 census records.I found Commercial Street,which is the Street below it (geographically ) but when I enter the same information to look for Blaenllechau Road.I get " no results " This is baffeling me.I've also tried different spellings.
Thank you both for your time and help.I'll keep trying.