ArmstrongEnglish Means "strong arm" from Middle English. Tradition holds that the family is descended from Siward, an 11th-century Earl of Northumbria. Famous bearers of this name include the Americans Louis Armstrong (1901-1971), a jazz musician, and Neil Armstrong (1930-2012), an astronaut who was the first person to walk on the moon.
BaileyEnglish From Middle English baili meaning "bailiff", which comes via Old French from Latin baiulus "porter".
ChávezSpanish Variant of Chaves. A famous bearer was the labour leader César Chávez (1927-1993).
CrawfordEnglish From a place name derived from Old English crawa "crow" and ford "river crossing".
DempseyIrish Anglicized form of Irish Ó Díomasaigh meaning "descendant of Díomasach", a given name meaning "proud".
DouglasScottish Anglicized form of Gaelic Dubhghlas, which meant "dark river" from dubh "dark" and glais "water, river" (an archaic word related to glas "grey, green"). This is the name of various places in Scotland, such as a tributary of the River Clyde.