9.3.1810 dine at St Paul's, w. Chenevix, &c / 26.2.1831 Chenevix calls
The 1810 entry seems likely to have been Richard Chenevix DNB 1774-1830 chemist who according to the DNB visited London in 1810. The 1831 entry cannot have been him as he died in 1830 but was possibly one of his illegitimate sons George and Charles Smith who changed their surname to Chenevix after their father's death