after, many of the dozens of buildings were bulldozed. >> it's been hard for us to come here to see that there was nothing left. >> reporter: the two friends have been on a long mission to keep the story of st. emma and st. francis alive through tours and contributing artifacts to be reviewed for admission into the african american history museum in the nation's capital. embodying the lessons learned on this land. >> this was an area of enslavement that turned into empowerment. >> reporter: to tell the story to generations to come. debra alfarone, cbs news, powhatan, virginia. >> jiang: and generations will be better off knowing that beautiful story. that is the "cbs weekend news" for this saturday. don't forget, "sunday morning with jane pauley," first thing tomorrow, followed by "face the nation," with margaret brennan, and the latest on the ukraine crisis. i'm weijia jiang in new york. good night.