Who was Christine Shack?

In the April 2009 issue of {\it Physics Today}, is an article on ``John Wheeler's work on particles, nuclei and weapons" written by Kenneth Ford. In Figure~4, among the twenty-one individuals in a group photo of the Project Matterhorn B team and support staff at Princeton University, there appears in the first row an African American woman, identified as Christine Shack. The major goals of this presentation are to give my findings on: Who was Christine Shack? What was her role(s) in Project Matterhorn? What was her career after leaving this project? My answers are based in part on several interviews with Shack.