William Wallace Campbell (1862–1938)
Born 1862 CE, died 1938 CE.
William Wallace Campbell (April 11, 1862 – June 14, 1938) was an American astronomer, and director of Lick Observatory from 1901 to 1930. He specialized in spectroscopy. He was the tenth president of the University of California from 1923 to 1930.
Text from the Wikipedia article William_Wallace_Campbell, licensed CC BY-SA 4.0.