Arthur Gray Leonard (March 15, 1865 – 17 December 1932) was an American researcher,
geologist
A geologist is a scientist who studies the solid, liquid, and gaseous matter that constitutes Earth and other terrestrial planets, as well as the processes that shape them. Geologists usually study geology, earth science, or geophysics, althou ...
and
educator
A teacher, also called a schoolteacher or formally an educator, is a person who helps students to acquire knowledge, competence, or virtue, via the practice of teaching.
''Informally'' the role of teacher may be taken on by anyone (e.g. whe ...
.
The first State Geologist of North Dakota, he was also a professor of geology at the University of North Dakota and made contributions to the knowledge of lignite coal and its relation to geologic time.
Biography
Early life and education
On March 15, 1865, A. G. Leonard was born in
Clinton, New York. He graduated from
Oberlin College
Oberlin College is a Private university, private Liberal arts colleges in the United States, liberal arts college and conservatory of music in Oberlin, Ohio. It is the oldest Mixed-sex education, coeducational liberal arts college in the United S ...
in 1889 and in 1895 received an A.M. degree from the same. Three years later in 1898, he completed his Ph.D. from Johns Hopkins University.
Before going to North Dakota in 1903, he served as assistant state geologist of Iowa, assistant professor of geology at the University of Missouri and professor of geology at Western College.
Death
In the early morning of December 17, 1932, A. G. Leonard succumbed to the ill effects of a heart disease that had kept him at home since September.
Awards and honors
The School of Geology and Geological Engineering in the College of Engineering and Mines at the University of North Dakota awards the A.G. Leonard Medal in his name. The
mineraloid
A mineraloid is a naturally occurring mineral-like substance that does not demonstrate crystallinity. Mineraloids possess chemical compositions that vary beyond the generally accepted ranges for specific minerals. For example, obsidian is an amor ...
Leonardite and a building on the campus of University of North Dakota are named after him.
References
External links
Science Obituary
{{DEFAULTSORT:Leonard, A. G.
American geologists
People from New York (state)
People from North Dakota
Johns Hopkins University alumni
University of North Dakota faculty
1865 births
1932 deaths