question: What are the full names of the two people who agree to the form of the signal where that was omitted and will was replaced with to?
context: Almost immediately, the signal began to be misquoted. A number of ships in the fleet recorded the signal as "England expects every man to do his duty" (omitting that and replacing will with to). This version became so prevalent that it is recorded on Nelson's tomb in St. Paul's Cathedral. The word that is also omitted on the version around the base of Nelson's Column, as seen in the photo above. However, the Victory's log and the accounts of signal officer John Pasco and Henry Blackwood (captain of the frigate Euryalus), both present at the preparation of the signal, agree on the form given here. On 26 December 1805, The Times newspaper in London reported the signal as; "England expects every officer and man to do his duty this day". In 1811, the tenor John Braham composed a song, "The Death of Nelson", including the words of the signal. The song became popular almost immediately and was performed throughout the British Empire during the 19th century. To make the words fit the metre, they were altered to "England expects that every man this day will do his duty". This version of the wording is also persistent.Between 1885 and 1908 it was believed that the signal had been sent using the 1799 code book, as in 1885 it was pointed out that this had not been replaced until 1808. In 1908 it was discovered, the Admiralty had, in fact, changed the signal code in November 1803, after the 1799 version had been captured by the French, and new code books had been issued to Nelson's fleet at Cadiz in September 1805. As a result, books published between these two dates show the signal using the wrong flags.
  The signal is still hoisted on the Victory at her dry dock in Portsmouth on Trafalgar Day (21 October) every year, although the signal flags are displayed all at once, running from fore to aft, rather than hoisted sequentially from the mizzenmast.
answers.text: John Pasco Henry Blackwood