A. G. Leonard

Arthur Gray Leonard (March 15, 1865 – 17 December 1932) was an American researcher, geologist and educator. 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.

A. G. Leonard

Arthur Gray Leonard (March 15, 1865 – 17 December 1932) was an American researcher, geologist and educator. 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.