by John Marshall, Royal Naval Biography — Roberts… (1823)
“ The Shearwater was paid off at Portsmouth, in the beginning of 1822; and in June following, Captain Roberts received an appointment to the Thracian 18, fitting out for the Jamaica station, where his boats, under the command of Lieutenant Amos Plymsell, assisted those of the Tyne 28, Captain John Edward Walcott, in capturing the Spanish piratical schooner Zaragozana, mounting one long 18-pounder, four 9-pounders, and eight swivels, with a crew of from 70 to 80 men, of whom 24 were soon afterwards sentenced to death, and executed. ”
