Final answer:
Travelers in 'Western Wagons' exemplified courage by braving the journey despite knowing the risks such as illness and accidents, focusing on survival and group coordination.
Step-by-step explanation:
The line from 'Western Wagons' that exemplifies the traveler's great courage is not explicitly provided in the given text, but one can infer from the context of the hardships and dangers mentioned that travelers showed courage by continuing their journey despite the risks of illness, starvation, and accidents. They displayed resilience by navigating through difficult terrain, ensuring their group's coordination and formalizing agreements for their collective success. The focus on survival and commitment to the perilous journey westward underscores their courageous spirit.