Final answer:
William Macado headed the War Industries Board (WIB) during World War I.
Step-by-step explanation:
During World War I, William Macado headed the War Industries Board (WIB) in the United States. The WIB was established in 1917 and played a crucial role in coordinating industrial production and allocating resources for the war effort. Macado, as the head of the WIB, had significant influence in mobilizing industries and ensuring efficient production of war materials.
Learn more about William Macado and the War Industries Board