Robert Fulton
The first successful trial run of a steamboat had been made several years earlier in the United States by inventor John Fitch, on the Delaware River on August 22, 1787. Attendees included delegates from the Constitutional Convention, who were observing while taking a break from their summer-long sessions at Independence Hall. The steamboat was propelled by a bank of oars on either side of the boat. The following year Fitch launched a boat powered by a steam engine driving several stern-mounted oars. These oars paddled in a manner similar to the motion of a swimming duck's feet. With this boat he carried up to thirty passengers for hire on numerous round-trip voyages on the Delaware River between Philadelphia and Burlington, New Jersey.
Isaac Briggs
On 1 February 1788, the Georgia legislature awarded Augusta inventor William Longstreet and his associate Isaac Briggs a patent for a steam engine. It is the only patent issued by the state because this was before the adoption of the Federal Constitution. In 1807 their engine was used to power a boat on a 5-mile journey against the current on the Savannah River. Only days before, Robert Fulton had sailed his new steamboat, the Clermont, from New York City up the Hudson River to Albany.)