"entering the Military Academy from that State, and graduating with distinction, on June 30, 1825."
"He acted as Assistant Inspector of the Illinois Volunteers, serving with Abraham Lincoln in the Black Hawk War of 1822."
Typos even in the old days. The Black Hawk War was in 1832. In 1822 Lincoln was nine years old and Anderson was at West Point. Small point, but it makes one more careful in reading sources. Stan