Louis Armstrong was called Satchmo as a joke on his big mouth. Some of his other nicknames where...Gate mouth, dippermouth, dip, and simply pops. The last two nicknames are unknown why to me. ...
His younger sister (born in 1903) was named Beatrice (later Beatrice Armstrong Collins)
His mother named him Louis.
nope
He was an American jazz trumpeter and singer from New Orleans.