In the book 'A North Country Estate - The Lumleys,and Saundersons as landowners, 1600 - 1900' by T W Beastall, ISBN 0 85033 180 3, there is the following information on page 50 :
"  In 1813.... The Lambton agent, Croudace, the tenant of Lumley Thicks farm under Lord Scarbrough.....  "
and on page 51. :
"  James Croudace occupied 168 acres at £210 p.a.  4 horses a year  " 
James Croudace was Land Agent for the Lambton family.  The reference to '4 horses a year' meant that, as tenant, he had to provide four men and horses to lead wagons of coal along the wagonway from the Earl of Scarbrough's pits at Lumley.  
Wearsider.