I've asked this question myself and I found out that it was answered in Jessie Sublett's excellent introduction to Deliver Me from Dallas in which he talks about letters between Willeford and Sanders that accompanied Willeford's copy of the manuscript. From what I've been able to piece together from all that I've read, it sounds more like Willford ghost wrote the book for his friend.
----- Original Message -----
From: "m23to53" <email@example.com>
Sent: Sunday, August 01, 2010 6:04 AM
Subject: RARA-AVIS: Charles Willeford and W Franklin Sanders
> Does anyone know if Sanders, listed as the joint author with Willeford on 'Whip hand'(1961), was actually a real person or a figment of Willeford's imagination - i.e. a pseudonym.
> Some sources say a pseudonym, some say he was an Air Force buddy of Willeford who actually wrote the original story.
> Can any clarify the story behind the book?
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