3 links
John Dos Passos per Daniel Aaron
english.upenn.edu
Chapter 15 of Aaron's "Writers on the Left," which discusses Dos Passos's early career.
One Man's Initiation: 1917
eldritchpress.org
First novel based largely on Dos Passos' own wartime experiences in France and Italy and published in London in 1920.
Ross Lockridge, Jr. on John Dos Passos
raintreecounty.com
A statement of some reasons for using "U.S.A." by John Dos Passos as a representative of the modern American novel (1943) by Ross Lockridge, Jr.