Dr. Tonya Matthews, left, president of the International African American Museum in Charleston, S.C., walking with Tamara Lanier, the woman who says she is a descendant of the subjects in the slavery photos, on the museum grounds on Tuesday.

Dr. Tonya Matthews, left, president of the International African American Museum in Charleston, S.C., walking with Tamara Lanier, the woman who says she is a descendant of the subjects in the slavery photos, on the museum grounds on Tuesday.