`Johnny' was applied as a nickname for Confederate soldiers by the Federal soldiers in the American Civil War; `greyback' derived from their grey Confederate uniforms
used by Northerners of Confederate soldiers; "the rebel yell"
take part in a rebellion; renounce a former allegiance
United States tennis player who in 1938 was the first to win the Australian and French and English and United States singles championship in the same year (1915-2000)