William Albert Samuel Hewins,
Dictionary of National Biography…
(1895)
“ Thrown out of employment, Pennington devoted himself to the study of currency and finance, and attracted the favourable notice of Huskisson, Ricardo, and Tooke. On the recommendation of the last-mentioned, he joined the Political Economy Club in 1828; he also contributed appendices to Tooke's ‘Letter to Lord Grenville,’ 1829, and to his ‘History of Prices’ (vol. ii. App. C) . When, on the emancipation of the negroes in 1833, it became necessary to regulate the currency of the West Indies, Pennington was engaged for that purpose by the treasury, and framed the measures which were adopted. ”
