American botanist and plant pathologist (1866-1925).
Mark Alfred Carleton (Ohio, United States 7 March 1866 – Paita, Peru 25 April 1925) was an American botanist and plant pathologist, most notable for his introduction of hard red wheats and durum wheats from Russia into the American wheatbelt. Carleton was born near Jerusalem, Monroe County, Ohio, but the family moved to Cloud County, Kansas, in 1876 where he worked on his father's farm. He attended Kansas State Agricultural College (now Kansas State University), graduating in 1887 with his bachelor's. For the next two years he taught natural history at Garfield University in Wichita. When fund