Crewe, whose father was then Speaker of the Commons, was returned sometime in May 1624 for the newly enfranchised borough of Amersham, where his uncle (Sir) Ranulphe*, the lord chief justice, had recently acted as an arbitrator in the sale of the manor.
At the general election of 1628 Crewe relinquished his claim to a seat at Brackley to his brother-in-law John Curzon, and transferred himself to Banbury, some seven miles from Steane, where the financial embarrassments of Sir William Cope* had enabled Crewe’s father to acquire an interest.
During the Personal Rule Crewe was charged with neglect over the collection of Ship Money, and accused of maintaining puritan preachers.
