D. H. Lehmer
American mathematician
Derrick Henry "Dick" Lehmer, almost always cited as D.H. Lehmer, was an American mathematician significant to the development of computational number theory. Lehmer refined Édouard Lucas' work in the 1930s and devised the Lucas–Lehmer test for... Wikipedia
Born: February 23, 1905, Berkeley, CA
Died: May 22, 1991 (age 86 years), Berkeley, CA
Parents: Derrick Norman Lehmer
Spouse: Emma Lehmer (m. 1928)