Did D.D. Palmer visit A.T. Still in Kirksville?

It has been claimed that prior to the discovery of chiropractic in 1895, D.D. Palmer, the discoverer of chiropractic, visted A.T. Still, the founder of osteopathy, in Kirksville, Missouri, where Still started the first school of osteopathy. Palmer's signature supposedly can be found in A.T. Still's guestbook. Palmer denied ever being in Kirksville, as did his son B.J. This article explores the evidence on both sides of the question.