Final answer:
Nora, the nurse, is the person Ben Carson says came when his mother "needed someone to care" in Gifted Hands: The Ben Carson Story.
Step-by-step explanation:
In Gifted Hands: The Ben Carson Story, Carson says that his mother came when she "needed someone to care". The person Carson is referring to is Nora, the nurse who took care of him as a child. When Carson's mother was unable to provide the care he needed, Nora stepped in and became a mother figure to him.