To JenB, AlanBoyd and Tickettyboo
It is hard for me to thank you all enough for your help. By putting all the information together with my own, I have been able to form a reasonably clear picture of events. The O'Neil family ran the beerhouse which would give them a little capital to buy and run the lodging house and, in fact, they were slum landlords. From the newspaper descriptions, the lodging house was in very poor condition but it would be an ideal place to stay for the itinerant workers at the local mines and on their way to the nearby huge steelworks at Consett. It also provided a customer base for their pub which was very close by.
Many lodging houses in the area would not accept the Irish but the O'Neils were an Irish Catholic family and did not discriminate against the Irish itinerant workers. Far from it - this is where they made the real money! They probably charged the same rates as other boarding houses but for inferior accommodation. The hamlet of Hilltop contained several such boarding houses but most would not accept Irish workers.
So Thomas McKenna made his money from the pub and his wife Kate (nee O'Neil) made hers from the boarding house. The pub and the boarding houses are long gone and a new (1970's) road caused the compulsory purchase and demolition of most of the buildings in the immediate area. To make matters more complicated, there were TWO Bird Inns in the Hilltop area (both now demolished). But, if I can find out when Henry O Neil died, I can probably pin down the exact location of this one. Many thanks to you all.
Neville