Leslie Stephen,
Dictionary of National Biography…
(1899)
“ Hurd, who made some inquiries from Warburton's relations, could only discover that as a boy he had resembled other boys. In 1714 a cousin, William Warburton, became master of Newark grammar school, and Warburton is said to have been then placed under him. If so, it was for a very short time, as on 23 April 1714 Warburton was articled for five years to John Kirke, an attorney, of East Markham, Nottinghamshire. He served his time with Kirke, and, while acquiring some knowledge of law, developed a voracious appetite for miscellaneous reading. ”
