The Girls and boys' miscellany, 1848 p. 49 (Sir Humphrey Davy)
MWA/NAIP files (hdg.: Davy, Humphry, Sir, 1778-1829; usage: Sir Humphry Davy; Sir Humphrey Davy; An angler; Sir H. Davy)
Wikipedia, viewed 19 August 2013 (Sir Humphry Davy, 1st Baronet, born in Penzance 17 December 1778, died in Switzerland 29 May 1829), English chemist and inventor)