Was Martin Luther King the youngest sibling?

Did Martin Luther King have a younger brother?

How many older siblings did Martin Luther King have?

Martin Luther King Jr. had two siblings: an older sister called Willie Christine and a younger brother called Alfred Daniel Williams King, or A. D. for short. Willie Christine was born on September 11, 1927, Martin Luther on January 15, 1929, and A. D. on July 30, 1930.

Who is Martin Luther King’s brother?