I had meant to look up a link to the book that poet Kim Roberts wrote about in last week’s “Guest in Progress” (When Washington Was in Vogue: A Lost Novel of the Harlem Renaissance), but I was distracted by my (alas, futile) attempt to try to include a lovely photograph she had provided.
When I mentioned this to her, she was kind enough to provide the following resources:
For more details about the book itself, here's a web page from the publisher, HarperCollins.
And here is some biographical information about author Edward Christopher Williams on the Howard University web site, where he taught.
And here is some more biographical info and a bibliography, from the DC Public Library's web exhibit, "The Black Renaissance in Washington."