Grand Allies Collieries
The Grand Alliance Company was formed to protect the mining interests of powerful owners around Durham, including Sir Thomas Henry Liddell, the Earl of Strathmore and Mr. Stuart Wortley (afterward Lord Wharncliffe), the lessees of the Killingworth collieries.
1808 George Stephenson, together with two other men, contracted to work the engines of the Killingworth pit, which was part of the Grand Alliance Company.
1811 Stephenson was placed in charge of machinery at all of the Grand Allies' collieries at a salary of £100 per annum.
1814 Ralph Dodds was Chief viewer at the Grand Alliance colliery
Dodds was succeeded by Nicholas Wood[1] (probably c.1818).