This is an excellent short video about W.E.B. Du Bois, and includes mention of the research he did for his 1899 book The Philadelphia Negro. There is audio of Du Bois' voice in the video. There are appearances from scholars Elijah Anderson and Tukufu Zuberi, as well as former Philadelphia mayor Michael Nutter. Veronica (Ronnie) Hodges is the narrator.
Legacy of Courage: W.E.B. Du Bois and The Philadelphia Negro from Amy Hillier on Vimeo.