He appears in the 1619 update to the 1575 Visitation of Cambridgeshire, with reference made to his position and ownership of lands at Ashe, Hampshire.
[6] During this period, Parliament required the services of a Clerk in Chancery, and promoted Willis's deputy, John Bolles, to that status.
[7] In April 1654, the war having concluded in 1651, Willis tried to reclaim his position, but having been branded a delinquent by the Parliament, the office of Clerk in Chancery was granted to Nathaniel Taylor in 1655.
[8] By this time his son Thomas Willis had also died (in 1646),[9] leaving his brother Valentine, to whom the office of Clerk in Chancery had been granted in reversion in 1641, to sue Taylor for possession of the position.
Thomas and his first wife, Barbara-[10] likely a relative of Barbara Loker (c. 1614- c. 1646), granddaughter and heir of Roger Loker, of Upton Grey, Hampshire-[11][12] had a son: He and his second wife, Mary, daughter of Valentine Saunders, one of the Six Clerks in Chancery, and widow of barrister Thomas Barker, of Grove House, Chiswick, had a son: