Armstrong was the eleventh of fifteen children, a mulatto, his father Henry senior was a black man with Indian and Irish blood. His mother was Halbindianerin America ( Cherokee ).
His pro debut he lost under the name Melody Jackson in 1931 by knockout, because he had not eaten practically because of the Depression era. He settled reamateurisieren briefly, then was finally professional under the name " Henry Armstrong ". He also lost some of his early struggles now, but only on points.
Alone in 1937, the classic boxed Pressure Fighter 27 times, won all the fights, 26 of them by knockout. On October 29, 1937, he cashed the world champion featherweight title by knockout in the sixth round of Petey Sarron. In 1938, he acquired the welterweight title against Barney Ross and the lightweight title against Lou Ambers.
He boxed largely welterweight, but weighed as a lightweight. The Ring Magazine referred to Armstrong as the best welterweight of all time.
His defeat in the middleweight title fight in 1940 against Ceferino Garcia, whom he had beaten ever welterweight, is considered misjudgment.
In 1940 he lost his title to Fritzie Zivic Welter, who beat him even early in the rematch, the only knockout loss of his career after that in his pro debut. Although he defeated in 1942 one more time Zivic in a non-title fight, yet its performance is now beginning to subside. In his defeat by the new welterweight star Sugar Ray Robinson, 1943, he was long gone the old man. 1945 Armstrong finished his career.
1990 Armstrong was induction into the International Boxing Hall of Fame.