Joseph himself was arrested on suspicion of corresponding with the enemy, and may have been involved with John Shaw in transferring funds to Charles II's court in exile.

[1] Nonetheless, he succeeded in avoiding further punishment, and during the final years of the Protectorate government, purchased the estate of Twickenham Meadows in the county of Middlesex, now known as Cambridge Park,[5] where his family would remain for nearly a century.

[7] In addition to his estate in Twickenham, Sir Joseph also bought and refurbished property in other places such as Wawne in Yorkshire, rarely inhabiting houses that he built up and owned as investment.

[8] While probably disapproving of the East India Company early in his parliamentary career, he later became one of its largest investors, with his widow and trustees holding in it a total of £10,000 of stock at the time of the Glorious Revolution.

[1] Sir Joseph is reported to have died "very rich" on 15 April 1686, and was buried at Twickenham Church, recognized as a "great benefactor" of the parish.