Simplify the following text for a Grade 8 native English-speaking person.
Original: The first use of that name is attributed to hydrographer John Lort Stokes who surveyed the coast in the Beagle in 1843 .
Simplified: The first use of that name is said to be by hydrographer John Lort Stokes who surveyed the coast in the Beagle in 1843 .