In an Associated Press story with national reach, Temple archaeologist and doctoral student Deirdre Kelleher is featured for her work at Philadelphia's Elfreth's Alley, the nation's oldest residential street. Keller is excavating two courtyards to learn more about the impoverished immigrants who lived there, and she invites the public to help. "I'm studying the general populace," said Kelleher. "I thought it was important to get the community involved."