  isaac ingalls stevens (march 25, 1818 â september 1, 1862) was the first governor of washington territory, a united states congressman, and a brigadier general in the union army during the american civil war until his death at the battle of chantilly. he was appointed posthumously to the grade of major general of volunteers. ==early life== stevens was born and raised in massachusetts, leaving his home state for the united states military academy at west point in the late 1830s. he graduated in 1839, at the top of his class, and served for a number of years with the army corps of engineers. he was promoted to first lieutenant in 1840. he was the adjutant of the corps of engineers during the mexican-american war, seeing action at the siege of vera cruz and at cerro gordo, [[battl
1818_births 1862_deaths American_military_personnel_of_the_MexicanaAmerican_War American_people_of_English_descent Delegates_to_the_United_States_House_of_Representatives_from_Washington_Territory Governors_of_Washington_Territory History_of_Olympia,_Washington People_from_North_Andover,_Massachusetts People_of_New_York_in_the_American_Civil_War Phillips_Academy_alumni Union_Army_generals Union_military_personnel_killed_in_the_American_Civil_War United_States_Military_Academy_alumni Washington_(state)_Democrats