If it this article you could just say 'Believed lost at sea after 14 Feb 1862'.
The Dundee Courier & Argus (Dundee, Scotland), Monday, May 26, 1862
Loss of Grain-Laden Vessels - The barque Tiberius, 475 tons, which sailed, grain-laden, from New York for Sunderland on 14th Feb., has not since been heard of, and the time which has elapsed, leaves very little room for doubt that both vessel and crew have perished. The vessel was commanded by Captain Robert Thompson Newman, Bishopwearmouth, but it is believed that none of the crew who sailed in her from Sunderland started on the return voyage. The Tiberius was the property of Messrs. Gourley, of Sunderland, and was built on the Wear in 1854. There are three or four more vessels belonging to Sunderland amissing on the homeward passage from New York, and the total number reported lost and missing on the same voyage since November last will not be under sixty sail, all grain laden.
Ian C
