The naval Battle of Juncal took place on 9 February1827 between an the newly independent fleets of Argentina, under William Brown, and Brasil, under Pereira. It was a decisive Argentinian victory, 12 Brasilian vessels being captured, including their flagship with the admiral on board and 3 burnt out of 17. February 9 is the 40th day of the year in the Gregorian Calendar. ... 1827 was a common year starting on Monday (see link for calendar). ...
While I credit Juncal and Bragan respecting this point, it is clear, and I find, that FJS representatives were referring to their own prescreening procedures, and they were not stating that the 511s would suffice as a substitute for Zurn’s application form.
Juncal (2:193) identified the 511R cards (GCXs 10–24) of the 15 as being those of the “guys who were there” the morning of August 17.
Juncal (2:207) and Bragan (3:638) testified that, before they left FJS that August 17, Bragan had a separate conversation with Yvonne Jordan.