Today, I came across a booklet published by the Tanners; as it is not available online:
Jerald Tanner and Sandra Tanner, Joseph
Smith's Successor: An Important New Document Comes to Light (Salt Lake
City: Utah Lighthouse Ministry, 1981)
What is important about this text, and why I scanned/uploaded
it, is that the Tanners accepted the authenticity of the Joseph Smith III
blessing, later discovered to be a forgery by Mark Hofmann. It shows that, while
Jerald is often celebrated for being skeptical of the Salamander Letter, both
he and Sandra accepted this Hofmann forgery.