8.1.1808 dine at Joseph Johnson's w. Percival
This is the only instance of this name in Godwin's diary. It's possible this may have been Robert Percival DNB 1765-1826. In fact he died in 1825 see his PCC will, which shows he had a wife Antoinetta. Two of his children by her were baptised in Jamaica in 1812 and 1813 and her maiden name was given as Cheverer or Chevivia. His brother was Westby Percival died 1850, whose parents Robert Percival and Frances Armstrong married in Dublin in 1775. Captain Westby Percival RN was more likely their uncle (see https://dubstewartmania1.rssing.com/chan-7985249/latest.php). Robert Percival's books on Ceylon (1803) and South Africa (1804) were published by C & R Baldwin of 103, Strand.