Frederick William Thomas, Dictionary of National Biography… (1912)
“ On his father's death in 1842 Cowell was taken from school to be trained for the management of the business. But during the next eight years, while engaged in commerce, he read in his spare hours with extraordinary zeal and variety. Of his scholarship and width of knowledge he soon gave proof in a series of contributions to the ‘Westminster Review,’ writing on Oriental and Spanish literature. At the same time he formed the acquaintance of many who shared his interests, among them the Arabic and Persian scholar, William Hook Morley [q. v. Suppl. I] , and Duncan Forbes [q. v.] ”
