Douglas MacArthur was born in Little Rock, Arkansas to Lieutenant General Arthur MacArthur Jr., a recipient of the Medal of Honor, and Mary Pinkney Hardy MacArthur of Norfolk, Virginia. Douglas MacArthur was the grandson of jurist and politician Arthur MacArthur, Sr.. He was baptized at Christ Episcopal Church in Little Rock on May 16, 1880.
Si Douglas MacArthur ay ang apo ni Arthur MacArthur, Sr., isang jurist at politician. Siya ay bininyagan sa Christ Episcopal Church sa Little Rock noong Mayo 16, 1880.