Born26 June, 1903
Hoylande received her Phd. in chemistry at the age of 21 and was the librarian of information on the Manhattan Project, which developed the nuclear weapon that ended WWII. Ethel and Norville were also the parents of Hilda Pearl Young, born 20 March 1905. Her role in the Manhattan Project is discussed in, Their Day in the Sun, Women of the Manhattan Project, by Ruth H. Howes and Caroline L. Herzenberg. In 1946 Hoylande became Argonne Labratory's first female Division Director.