Charles Thomson of Pennsylvania served as Secretary of the Continental and Confederation Congresses throughout their entire fifteen-year existence, from 1774 to 1789. In that position, he signed the Declaration of Independence on July 4th. With a very small executive department, the role was much more than clerical; especially when Congress was not in session, he essentially acted as the prime minister of the pre-Constitutional United States.
This letter to the governor of Georgia transmitted printed copies of the Proclamation of the Treaty of Paris and Congressional Resolution (both no longer present), written by Thomas Jefferson, recommending that the states restore the confiscated property of all British subjects who had “not borne arms against the...United States” in a “spirit of conciliation.” The recipient, John Houstoun, had taken office as governor of Georgia one week earlier.