Archibald MacleishHenry David Thoreau (1817-1862) was an essayist, poet, philosopher, and anti-slavery activist. Among his other notable books are A Week on the Concord and Merrimack Rivers and Civil Disobedience.Archibald MacLeish (1892-1982), was a Pulitzer Prize-wining poet and author of such eminent works as Conquistador and J.B. Read More Read Less