S. Crane was a 24th century Human. This person was the captain of the FGMS Gyt'aerat.
In 2370, Capt. S. Crane was listed on the Deep Space 9 arrival roster. (DS9: "Whispers", production art)
This character was apparently named after the American author Stephen Crane, whose most famous work is The Red Badge of Courage. The name was not mentioned in dialog, it was simply listed in an okudagram graphic of an arrival roster on a viewscreen. The graphic was also populated by a number of other in-jokes.