According to Eliott-Drake, he was the second son of Andrew Pollexfen of Stancombe Dawney in the parish of Sherford, Devon, by his wife Joan Woollcombe, a daughter of John Woollcombe of Pitton in the parish of Yealmpton in Devon, great-grandfather of John Woolcombe, MP for Plymouth in 1702. He was a younger brother of Henry Pollexfen, of Nutwell in the parish of Woodbury, Devon, Lord Chief Justice of the Common Pleas. This parentage differs from that given in the pedigree in the Heraldic Visitations of Devon, which therefore appears unreliable. Andrew was a younger grandson of John Pollexfen of Kitley in the parish of Yealmpton in Devon.
Career
John's elder brother Henry inherited the family estates, which led to strained relations between the brothers. John's early career as a merchant began with trading in wines from the Iberian Peninsula, leading to a summons to the Treasury on 28 March 1677 to report on Portuguese wines. In the same year he bought Walbrooke House, in the parish of St Stephen Walbrook, and in 1686 he purchased the manor of Wembury. In 1675 he served on the Committee on Trade and Plantations, followed by an appointment in 1678 to the Privy Chamber in 1678, which he held until 1685; he was again appointed in 1690, and remained until 1702. He was appointed to the Commission for Preventing the Export of Wool in 1689, resigning in 1692. He was elected a Member of Parliament for Plympton Erle in Devon in October 1679, and again for the Parliaments of 1681, 1689 and 1690. He was active on various economic affairs committees, helping pass the Tobacco Act and renew the charter of the East India Company. He was made a Justice of the Peace for Devon in 1689 and an honorary trustee of the National Land Bank. His most significant appointment was as a member of the Board of Trade between 1696 until 23 April 1709. While there he participated in the recoinage debate, produced a report on the judicial system of Barbados and advocated a unified military command for the American colonies. In 1677 he served on a special commission of the East India Company, accusing the directors of monopolising the trade through jobbery and refusing to issue new stock, and also condemned the export of gold bullion, which he saw as suppressing domestic production and employment. As a result, he lobbied the House of Commons in 1689 to establish a new, national company, and presented written and oral testimony to the House of Lords in 1696 showing the harmful effects of importing Indian-manufactured goods and exporting bullion. In response the Lords and Commons opened up the trade lanes to India, establishing a well-regulated company to manage this. As a by-product of his public career Pollexfen published a series of political and economic essays. After Charles Davenant published his An Essay on the East India Trade in 1697, Pollexfen responded with his essay England and East India Inconsistent in their Manufactures, and also published A Discourse of Trade and Coyn dated 15 July 1696, an extended version of which was republished to counter William Lowndes proposal of recoinage. In 1699 he published A Vindication of some Assertions Relating to Coin and Trade, and a year later republished of Trade. He served as a Gentleman of the Privy Chamber 1678-85 and 1690-1702.
