We therefore made all sail towards the Dead-man's Chest, a rock so called, from its singular shape, which lies about three leagues from the main-land, and nearly a-breast of the bay where we wished to go. This rock, when seen from a distance, appears a flat surface, almost level with the surface of the water; but, on a nearer approach, it assumes a regular shape, which has been compared, by one of the Spanish fathers who first visited the country, to a table with a coffin lying upon it; whence it has its name, in Spanish el Casa di Muerti, which means nothing more than a coffin, but, literally translated, is the Dead-man's chest, its present English name. The idea is gloomy, but the resemblance appeared to me very striking.

--from A Voyage in the West Indies By John Augustine Waller (London: Sir Richard Phillips and Co., 1820)

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САХА DE MUERTOS, or DEAD MAN'S CHEST.—This island is on the South side of Porto Rico, and bears E. ½ S., 36 miles, from Cape Roxo. When made, it appears in the form of a wedge. The North end is high, the centre low, and the South end has a sugar-loaf mountain, which at a distance appears a detached island. The anchorage is on the West side, off the low land, half a mile off shore, in 8 fathoms, in the following bearings:—South-east point of the small island, connected to Саха by a reef above water, S.W.; the only sandy bay S. by E.; the North-west point and Northern peak in one, East. There is no danger on the West side of this island, and off the low land the soundings are regular; but to the Northward of it the water is deeper, and you will have 17 fathoms close to the shore. Off the Southward of the island there is a shoal, which breaks, about half a mile off shore.

--from The American Coast Pilot by Edmund March Blunt (New York: Edmund and George W. Blunt, 1857)