The U.S. ship ADELAIDE METCALF, 673 tons, was built in Damariscotta, Maine, in 1849, and registered at New York on 7 May 1850 [Forrest R. Holdcamper, comp., List of American-flag Merchant Vessels that received Certificates of Enrollment or Registry at the Port of New York, 1789-1867 (Record Groups 41 and 36), National Archives Publication 68-10, Special Lists 22 (Washington, DC: National Archives and Records Service, 1968), p. 17]. I know nothing about her other than the following 2 voyages to New York:

1852 Apr 29 - Ship ADELAIDE METCALF, of Boston, Scott, master, arrived at New York, 27 days from
              Antwerp, with 337 passengers to R. W. Trundy.
1855 Mar 27 - Ship ADELAIDE METCALF, Hanson, master, arrived at New York, from Havre 14 Feb 1855,
              with 136 passengers to Metcalf & Lovejoy.

The U.S. ship ADMIRAL was built at New York by William H. Webb (hull #27), and launched in August 1846, for Fox & Livingston's Union Line of sailing packets between New York and Havre. 929 tons; 160 ft 2 in x 35 ft 8 in x 25 ft 4 in (length x beam x depth of hold); 2 decks; draft 19 feet. The ADMIRAL served in the Union Line from 1846 until the line was dissolved as a consequence of the Civil War in late 1862/early 1863. During this period her westbound passages averaged 33 days, her shortest passage being 22 days, her longest 46 days. She was sold to M. I. Wilson, of Liverpool, in 1863, and placed under British registry; I have been unable to find any reference to her in the annual volumes of Lloyd's Register of Shipping, but it should be possible to trace her later history through the annual volumes of the Mercantile Navy List, the official list of British-registered vessels.

Sources: Edwin L. Dunbaugh and William duBarry Thomas, William H. Webb: Shipbuilder (Glen Cove, New York: Webb Institute of Naval Architecture, 1989), p. 167; Robert Greenhalgh Albion, Square-riggers on Schedule; The New York Sailing Packets to England, France, and the Cotton Ports (Princeton: Princeton University Press, 1938), pp. 284-285, 298.

The Bremen ship ADMIRAL was built at Vegesack/Grohn by Johann Lange, and was launched on 23 September 1848. 320 Commerzlasten / 744 tons; 39,8 x 9,8 x 6 meters (length x beam x depth of hold). Original owners were the Bremen firms of Hermann Fr. Weinhagen (1/3) and Julius Schaer & Co (2/3 - in 1851, 1/3 transferred to Georg Heinr. Wilh. Schaer); the vessel was managed by H. F. Weinhagen. 20 October 1848, maiden voyage, Carl Wieting, master, to New Orleans. The ADMIRAL was engaged in the transport of emigrants to North America and was commanded by Carl Wieting until the early 1860's, when he was succeeded by Johann Friedrich Haeslop. In the early 1870's, the Bremen firm of Anton Fr. Ad. Schaer became managers of the ship, being succeeded in 1878 by Reck & Boyes, who installed H. N. Lauer, from Vegesack, as the last master of the vessel under the German flag. In the mid-1880's, the ship was sold to Westergaard & Hannevig (later Westergaard & Co.), of Christiania, Norway. On 1 April 1891, bound in ballast from Rio de Janeiro to Halifax, the ADMIRAL, now rigged as a bark, was stranded in the vicinity of Ocean City, Maryland, not far from Philadelphia, and became a total loss

Source: Peter-Michael Pawlik, Von der Weser in die Welt; Die Geschichte der Segelschiffe von Weser und Lesum und ihrer Bauwerften 1770 bis 1893, Schriften des Deutschen Schiffahrtsmuseums, Bd. 33 (Hamburg: Kabel, c1993), pp. 215, no. 200, and 216.

The Bremen ship ADONIS was built at Vegesack/Grohn by Johann Lange for the Bremen firm of F. Reck & Co and three co-owners, and was launched on 5 May 1853. 245 Commerzlasten; 37,2 x 9,1 x 5,4 meters (length x beam x depth of hold. Although Bremen records consistently refer to the ADONIS as a ship, U.S. records often refer to her as a bark because of the shortness of the yards on her mizzen. The ADONIS was commanded her entire career by Diedrich Bosse.

23 May 1853, maiden voyage, Bremerhaven-New York, with 302 passengers. On 7 March 1859, bound from Liverpool for New York, the ADONIS stranded south of Long Branch, New Jersey, and became a total wreck; there was no loss of life.