Mathew Carey Lea

Mathew Carey Lea (August 16, 1823 – March 15, 1897) was a Philadelphia-born American chemist and lawyer.

His father, Isaac Lea (1792–1886) was a distinguished naturalist member of the American Philosophical Society, and publisher. Isaac Lea was descended from a Philadelphia Quaker family, and had been born in Wilmington, Delaware. On March 8, 1821, Isaac married Frances Anne Carey (1799–1873), a botanist as well as daughter of Mathew Carey, the Philadelphia publisher whose business he ultimately took over with his brother-in-law and which turn their sons and grandsons worked in. Henry Carey and Isaac Lea's highly successful publishing house printed the works of Thomas Jefferson, Parson Weems, Walter Scott, James Fenimore Cooper, and the first quarto Bible of American manufacture (both the Douay version and the Authorized version).

Eminent Irish American mathematician Eugenius Nulty tutored both Carey (as the family called him to distinguish him from his grandfather) and his younger brother Henry Charles Lea at their Philadelphia home (a third brother Mathew died in his infancy, and their syster Frances cared for their mother). The erudite Nulty gave the Lea brothers a classical education and singlehandedly taught the pair the entirety of the trivium (grammar, logic and rhetoric) and quadrivium (arithmetic, geometry, music and celestial navigation) as well as classical languages and history. Nulty immersed the boys in a single subject for long periods to encourage its complete mastery. During their years under Nulty's tutelage, Henry and Carey also worked in the Booth & Boy chemical laboratory.

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