From Boston Elite to Tragic Texas Filibuster: Augustus Magee and his Republican Army of the North.

We know Magee was close to Murray because the latter served as Magee's second in a duel in early 1812, in which Magee lost a finger before killing a Frenchman. In June 1812, with war on the horizon between the United States and England, Augustus William Magee, a young U.S. Army lieutenant on the Louisiana frontier, threw away a promising military career and cast his lot with a Mexican revolutionary, José Bernardo Gutiérrez de Lara, in a bold attempt to liberate Texas from the Spanish Empire. 55 For evidence of the connection of members of the Gutiérrez-Magee Expedition, see Bernsen, "Origins and Motivations of the Gutiérrez-Magee Filibuster." Perkins would probably have preferred to bring Augustus into the family business, but in 1807, the year after Magee's graduation from Phillips Exeter, President Jefferson's Embargo Act shuttered Perkins's trading empire. [Extracted from the article]