Final answer:
The story about Russell does not mention any nickname given by Russell to Rita as an adult.
Step-by-step explanation:
In the story about Russell, the nickname that Russell gave Rita as she was an adult is not mentioned or provided in the given information. The passages provided talk about different topics like baseball, Daisy Miller, Russell's early life, and a woman encountering difficult circumstances. However, none of these passages mention a story about Russell and Rita or provide any nickname given by Russell to Rita as an adult.