More may be added to the earlier biography.
As is indicated by Wintershall’s service as either sheriff or escheator of the joint bailiwick of Surrey and Sussex for ten of the 28 years between 1404 and 1432, he was a man on whom the government could rely in administrative matters. This is also suggested by his long lieutenancy of Windsor castle, where he served under John Waterton† and Sir Walter Hungerford†, Lord Hungerford, performing his duties to their satisfaction for 20 years.
While the Parliament of 1425 was in progress, Wintershall, then a Member of the Commons for at least the fifth time, took the opportunity of being at Westminster to bring a number of suits for debt in the court of common pleas: he appeared in person to sue for recovery of sums amounting to £60.
