The data William Clayton] had gathered would be published in St. Louis, in time for the emigration of the next season, as THE LATTER-DAY SAINTS’ EMIGRANTS’ GUIDE, Being a Table of Distances, Showing All the Springs, Creeks, Rivers, Hills, Mountains, Camping Places, and All Other Notable Places, from Council Bluffs to the Valley of the Great Salt Lake, also, the Latitudes, Longitudes, and Altitudes of the Prominent Points on the Route, together with Remarks on the Nature of the Land, Timber, Grass, &c. The Whole Route Having Been Carefully Measured by a Roadometer, and the Distance from Point to Point, in English Miles, Accurately Shown. By W. Clayton. It was the most complete and reliable guide available for any strand of the Overland Trail, including that section between Fort Laramie and the Dry Sandy where all the strands fused. Appreciated or not by Clayton’s companions, it would be valued by thousands, both Mormon and Gentile, in the years to come—though actually more by Gentile than by Mormon, for the Saints, sheep guided by careful shepherds, had no need of a guidebook except to satisfy their curiosity about where they were. The copyright was in Clayton’s name.