William Peters' co-author of "For Us, the Living" delivered the invocation at the second inauguration of what president?
For Us the Living: The Medgar Evers Story:  The film was based on the book, "For Us, the Living", by Myrlie Evers-Williams and William Peters. Myrlie Evers-Williams:  On January 21, 2013, she delivered the invocation at the second inauguration of Barack Obama.
Barack Obama