United States astronaut; the first man to set foot on the Moon (July 20, 1969) (1930-)
"Neil Armstrong became a national hero after he walked on the moon in 1969."
United States pioneering jazz trumpeter and bandleader (1900-1971)
"Louis Armstrong's innovative trumpet playing helped define the sound of early jazz music."
Short for Armstrong gun.
"The old artillery piece was an armstrong, a large-bore rifled gun used in naval battles."
An English surname, from nicknames, originally a nickname for someone with strong arms.
"The Armstrong family has lived in that village for generations, carrying on a name that originated as a nickname for their ancestor's powerful build."
The name comes from the surname of Canadian politician James William Armstrong, who founded a rural municipality in Manitoba with that same name. It was not formed by combining "arm" and "strong," but rather adopted directly as a proper noun to honor him.