|Dates & places of birth and death||
b. 1901 Jefferson, Iowa
|Occupation||Chair of University of Montana Art Department, 1946-1954|
Arnold was born in Jefferson, Iowa. He attended the University of Iowa, Iowa City, where he received a BA in 1925 and an MA in 1928. While still a student, he began teaching in the art department. In the summer of 1928, he attended the Cape Cod School of Art. He also attended the National Academy of Design in New York City in 1929. In 1930, he returned to the University of
Iowa as a faculty member, teaching graphic and plastic arts. There, Arnold was joined by renowned social realist artist Grant Wood in 1934. Wood had a strong influence on Arnold’s style and career, introducing the younger artist to mural painting. In 1939, Arnold joined the faculty of The University of Montana. He
served during World War II developing camouflage patterns. He returned to Montana in 1943 and became chair of the Art Department from 1946 to 1954, retiring in 1969. He was a founding member of the Montana Institute of the Arts and the Montana Art Education Association.