Samuel Fisher was a very skilful engraver of steel plates whose career extended from the early 1830's up to about 1852. He died in 1855. He was exceptional at translating the mood that artists had put into their work and notably the half-dozen of Turner's works that he engraved.
Like most of his profession he was a competent artist himself and many of his engravings are entirely his own composition.
I have some thousands of old engravings as I used to deal in old maps and prints and amongst them are several by this engraver.