William Watson was one of two Members of the Parliament of England for the constituency of York in 1553, between 1562 and 1571 and then again in another session in 1571.
[2] William held leases at a number of properties in the city, notably the Old Bailey near the Skeldergate Postern.
Like many aldermen, he took a lease on Ouse Bridge as recorded in the Bridgemasters' Rolls, but did not live there, preferring a residence in High Ousegate.
Although a notable tenant of his Ousebridge house was Andrew Trewe who was also represented the city as MP.
The latter he bequeathed to his nephew, Robert Paycock As a franchised merchant, he became involved in the running of he city and held several offices.