Washington Grammar Technical college School Tom Thirlaway
I also discovered a woman in New Zealand, who has created a list on the the names Thirlaway/Thirwell and their variants. This was done using the 1881 census in county durham. Why, I have no idea but you can contact her at
This is all I could find before my computer crashed and I had to go to bed. You probably know about the above but any excuse to invade your computer and have a ferret about.