Heraldic evidence indicates that the Leicestershire Whattons were a junior branch of the ancient knightly family established at Whatton in south Nottinghamshire.
This younger John was certainly advanced by Thomas’s connexions. Among the great families who employed the lawyer were the Beaumonts, substantial landholders in the vicinity of Long Whatton and Mountsorel. As early as July 1427 Thomas Whatton had acted as a mainpernor for Elizabeth, mother of John, Lord (and from 1440 Viscount) Beaumont; and in 1444 the viscount employed Thomas as an attorney in an important conveyance.
This election, which took place on 1 Nov. 1459, marked a brief highpoint in Whatton’s career. Six days later, and 14 days before the Parliament was due to assemble at Coventry, he was named as escheator in Leicestershire and Warwickshire, presumably again as a servant of Beaumont.
The records reveal a few details of Whatton’s private affairs. In April 1454 he found himself as a defendant in Chancery as a feoffee of his neighbour, Sir Simon Aleyn, a knight of remarkable obscurity, in lands in Long Whatton and neighbouring vills. Sir Simon’s heir, the equally obscure John Elnore, claimed that Whatton had failed in his duty to convey the lands to him.
