In 1615, he persuaded Edward Pickering to become his agent in Holland and together they began to import a variety of nonconformist
religious tracts that were seditious. In 1619, he and his agent Philomen Powell began importing tons of
alum for which they did not pay custom duties. He and some of his associate Merchant Adventurers had been brought before the Privy Council and ordered to cease unlimited trade in the Netherlands. Soon after, he left England and travelled to
Leiden,
Holland, where his agent Pickering had married a Puritan woman belonging to a group of separatists who were in exile due to their religious views; these Puritans were hoping to gain passage to America. Weston became involved with the Leiden Separatists who left England aboard the
Mayflower and settled Plymouth colony in 1620. The colony was financed and begun under his direction, but he quit the enterprise in 1622. The children were then given over to the custody of three senior Pilgrim officials for the voyage to the New World. Three of the four children died the first bitter winter in Plymouth. Only Richard More survived. == Marriage and children ==