Royal Navy turns over suspected American slaveship to the United States Navy
H.M.S. Viper had captured the suspected American slaveship Virginia several days before off the coast of Africa. The British warship then sought a U.S. Navy vessel and finding the U.S.S. Portsmouth delivered the Virginia into American hands. The Portsmouth assigned a prize crew and the Virginia was sailed under arrest to the United States. (By John Osborne)
Francis Vincent, Vincent's Semi-Annual United States Register.... 1st of January and 1st of July, 1860 (Philadelphia: Francis Vincent, 1860), 109.