Final answer:
Sebastian Junger uses firsthand accounts and personal experiences of crew members to compile direct quotes alluded to characters in 'The Perfect Storm'.
Step-by-step explanation:
The information source that Sebastian Junger uses to compile the direct quotes alluded to characters in 'The Perfect Storm' is the book itself. Junger conducted extensive research and interviews with the people involved in the events depicted in the book, including crew members of the fishing vessel Andrea Gail.
He used their firsthand accounts and personal experiences as the basis for the direct quotes and to create realistic and authentic characters in the story.
To answer the question as to what information source Sebastian Junger used for compiling the direct quotes referenced in characters from his book The Perfect Storm, we need to look at his overall research methodology. Junger, renowned for his immersive journalistic style, likely drew upon a combination of personal interviews, maritime logs, weather reports, and other historical documents related to the 1991 event at the center of the story.