In "Indian Camp", we see life and death. The Indian woman gives birth to a child while her husband proceeds to kill himself.
We also see that Nick has a connection with nature and life. In "Big Two-Hearted River", Nick is fascinated with the trout and it calms him. Hemingway experienced a lot of life and death. The best parts of his childhood was going camping and being in nature; we see this in "Big Two-Hearted River". Nick's father committed suicide along with other members of Nick's family. We see this in "Indian Camp".
These show the theme of life and death in Hemingway's writing.