A Concise History of the Mormon Battalion in the Mexican War, 1846-1848, By Sgt. Daniel Tyler.

Daniel Tyler was a dedicated member of the Church of Jesus Christ of Latter Day Saints. He participated in many of the "critical" events of that Church from it's beginnings. His first person account of the march of the Mormon Battalion is a day by day account of the "longest recorded march in military history." A lengthy introductory by John Taylor, president of the Church, a poem by Eliza R. Snow and a recount of the First General Festival of the Battalion with speeches by Brigham Young and others, makes this a very readable and valuable addition to any history library. Scholars will find numerous mistakes in rosters and some facts. This is to be expected from someone who didn't have access to anything but diaries and other somewhat less reliable resources. But it was written by someone who was there.