Thanks for reply.
HOwever a query and a commet:
1) The photo in this link is that of Will Brown murdered at Omaha Nebraska in 1919-not Walker killed in 1911.

You are correct. This is not Zach Walker but Will Brown

2) In regard to "Whithout Santuary" -When it was online-I don't recall
seeing any of the photos iD as Walker. Which one was it?

Without Sanctuary is still online and the photo there is associated to the lynching of Will Brown and not Zach Walker. The photograph in the Black Book is on the back page of a Coatsville, Pa news article about the lynching of Zach Walker and is not identified.

PS: You may want to contact the writer at my previous link to let them know that the photograph they are showing as the lynching of Zach Walker is actually Will Brown.

Best regards
Doll