(1749-1819)
John Langdon was a native of New Hampshire.
He did not receive a great deal of education and began as an apprentice to a merchant.
Langdon invested his money in trade and became a wealthy man.
He avidly supported the Revolution, leading colonists in a raid on British gunpowder stores, serving in public office, and pledging money to finance various military campaigns.
Langdon played an important role at the Philadelphia Convention, even though he arrived late.
He favored a more powerful national government and worked for ratification in New Hampshire.
His later service included duty as governor of his home state and U.S. senator.
