Biographical Sketches of American Artists

Helen L. Earle, compiler, Biographical Sketches of American Artists. Fifth Edition, Revised and Enlarged. Lansing, Michigan State University, 1924. 
In Blumenschein bio sketch: “’Superstition’ is the painting that was awarded the Altman prize at the National Academy of Design in 1921 when it was withdrawn from Carl Rungius, a foreign-born competitor, who was, because of this fact, not eligible.” (50)

“RUNGIUS, CARL, (I., P.) b. Berlin, Germany, August 18, 1869. Came to the United States when twenty-five years old. Elected associate member of the National Academy of Design in 1913.

Last year his “Fall round-up” was awarded the first Altman prize of $1,000, when it was discovered that his being of foreign birth barred him from the competition, as one condition of the will of Mr. Altman was that the prize could not be given to other than “an American-born artist.” So the name of Ernest Blumenschein who was born in this country was substituted, his prize winning picture being “Superstition.”

Mr. Rungius' painting “Fall round-up” is a fine picture and thoroughly American in subject and treatment. Two cattlemen are in their saddles on a hill overlooking a valley with spots of vegetation and cattle in the distance and a blue sky over all.

Carl Rungius, E. Irving Couse, Albert L. Groll, and Ernest L. Blumenschein are called the "big four" who depict the decorative delights of Taosian half-breeds.

"There is in his paintings a hearty invigorating message of nature on a big scale." (273)

[quote identified as “Country L 40:35” – Country Life article, presumably]