Thomas Weston (merchant adventurer)
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 woman belonging to a Puritan sect called Separatists, consisting of English men and women in exile due to their religious views who were hoping to gain passage to America.
Thomas Weston was the London merchant who first became involved with the Leiden Separatists who settled Plymouth colony in 1620. The colony was financed and begun under his direction, but he quit the enterprise in 1622.
As agent for the merchant adventurers' investment in the Mayflower voyage, Thomas Weston played an instrumental part in the incident of the More children of Shropshire, who had been taken from their mother’s home in 1616 in a dispute centreing on her supposed adultery. The children had been held incommunicado in Shropshire for four years and then taken to Weston and held at his home in Aldgate, London, for some weeks until the Mayflower was to sail. They 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
Thomas Weston married Elizabeth Weaver by October 17, 1623. She was a daughter of Christopher Weaver and Anne Green. He had one child, Elizabeth Weston, born about 1630. She married Roger Conant before January 22, 1661/2, and had two children. He died in June 1672. Child of Thomas and Elizabeth Weston:
- Elizabeth, born about 1630. She married Roger Conant before January 22, 1661/2. They had two children. Roger Conant died in June 1672.
In early 1622, he began the colony of Wessagusset (Weymouth) which failed by March 1623. He left New England for Virginia, and by 1640, Maryland. Weston’s activities in regard to the Plymouth colony are detailed in William Bradford’s history - “So, Mr. Weston had come hither again, and afterward shaped his course for Virginia, and so for the present I shall leave him.”
Thomas Weston often figures in William Bradford’s “History” and Robert Cushman’s letters. He was an Adventurer (or Merchant Adventurer), promoter and capitalist, and being a citizen and ironmonger of London. One derogatory comment recorded about him from records of the time was that: He was eager to reap quick profits from the New World, and not very scrupulous about the means.
On March 1, 1622, Weston was to deliver a cannon to the Council of New England but sold it instead to a Turkish pirate and pocketed the money. Weston was declared an outlaw from the Crown. On May 31, 1622, the Council for New England ordered the forfeiture of Weston’s ships and did so immediately.
According to C.M. Andrews in the book Colonial Period, these remarks were recorded about Weston: "Weston, after squeezing all he could out of the Pilgrims, became a planter and burgess in Virginia, where he made trading and fishing voyages to the Maine coast. After being arrested more than once for breaking the Colony’s laws, he went to Maryland, acquired new property, and returned to England. Thomas Weston died of the plague in Bristol, England May 1, 1646 and November 23, 1647, heavily in debt."
His death and burial
He died in Bristol of the plague between May 1, 1646 and November 23, 1647. He was presumably still alive when William Barwick of Bristol deposed that Weston had come to London in June 1645 on the ship Trewlove. And before November 23, 1647 when Christopher Weaver allowed a generous bequest to his daughter, the widow Elizabeth Weston, for “her better advancement in marriage.” William Bradford recorded - “He died afterwards at Bristol, in the time of the wars, of the sickness in that place.” The exact burial location of Thomas Weston and his wife Elizabeth is unknown. 
- A genealogical profile of Thomas Weston, (a collaboration of Plimoth Plantation and New England Historic Genealogical Society accessed 2013) 
- NEHGS American Ancestors Pilgrim Valley Family Sketch of Thomas Weston
- David Lindsay, Mayflower Bastard: A Stranger amongst the Pilgrims (New York: St. Martins Press,), p. 27
- Robert E. Cushman and Franklin P. Cole. Robert Cushman of Kent (1577-1625) : Chief Agent of the Plymouth Pilgrims (1617-1625) (pub General Society of Mayflower Descendants 2005- 2nd Ed) edited by Judith Swan, p. 110
- David Lindsay, Mayflower Bastard: A Stranger amongst the Pilgrims (St. Martins Press, New York, 2002) pp. 27-28
- Charles Edward Banks, The English Ancestry and Homes of the Pilgrim Fathers (New York: Grafton Press, 1929), p. 72
- "A General History of New England" Page 72, 1898
- David Lindsay, Mayflower Bastard: A Stranger amongst the Pilgrims (New York: St. Martins Press, 2002), pp. 28 54-55
- Grave of Thomas Weston