Angela's daughter Andrea says she felt humbled by the people who lost everything in the storm.
"I'm so proud of my mother for going down to help with the Hurricane Katrina rescue effort," Andrea wrote to The Oprah Winfrey Show. "She sets such a great example for how you should always help people in need."
"You're right, Andrea...your mother is a hero," Oprah says. "Hurray for all the nurses!"