A little more in thread 17920, and chords. Leaving Liverpool

The hull plan of the clipper Davy Crockett is at American Memory (Item 20, Search "Liverpool"). Notes say "Hull plans for the ship Davy Crockett. Lines drawn by Edson I. Schock from a model by Carl C. Culter." The plan is at Mystic Seaport and is part of "Westward By Sea."

Not sure how it ties in, but the same notes say: "The Comet was a clipper ship built by George Greenman and Co. in 1853. She often sailed on the New York to San Francisco run but also made several voyages to Liverpool. Lost in 1899."
Were the two ships built to the same hull, or was the Comet re-named?