Leyendecker, Ruth and Wayne, with Roger F. Campbell. "We Escaped from Armstrongism." In James R. Adair and Ted Miller, eds. We Found Our Way Out. Grand Rapids: Baker Book House, 1965.Thanks to Banned by HWA this resource is now online.
We Found Our Way Out (1964, 1975) by Ruth and Wayne Leyendecker, with Roger F. Campbell.
When I looked at Walter Martin's bibliography the one thing I wanted to see most was this one, because it is set before the turmoil began within WCG in the early 1970s.
I am sorry I did not comment on this before. This is a humble attempt to correct my omission.