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In the case of a large convoy, one vessel would carry a "Principal Agent" (Commander or Captain RN) with a "Blue Broad Pendant" at the main-top-mast head. In the absence of a naval escort, the Principal Agent was in charge of the convoy. This is in addition to any Agent for Transports that may be present.
|Date from||Date to||Holder||Source|
|1778/12/26||1782||Thomas Tonken (c.1732-1791)||ADM1|