Henry Miller Shreve was an American inventor and steamboat captain who removed obstructions to navigation of the Mississippi, Ohio and Red rivers. Shreveport, Louisiana, was named in his honor.

A steamboat is a boat that is propelled primarily by steam power, typically driving propellers or paddlewheels. Steamboats sometimes use the prefix designation SS, S.S. or S/S or PS ; however, these designations are most often used for steamships.