Accumulation of data was begun the last few months of the lifetime of Thomas E. Farish, who had been State Historian since Arizona's assumption of statehood in 1912. Upon his regretted passing, in October of 1919, the task of compilation and writing and of possible publication dropped upon the shoulders of his successor. The latter has found the task one of most interesting sort and hopes that the resultant book contains matter of value to the student of history who may specialize on the Southwest. By no means has the work been compiled with desire to make it especially acceptable to the people of whom it particularly treats--save insomuch as it shall cover truthfully their migrations and their work of development. With intention, there has been omitted reference to their religious beliefs and to the trials that, in the earlier days, attended the attempted exercise of such beliefs. Naturally, there has had to be condensation of the mass of data collected by this office. Much of biographical interest has had to be omitted. To as large an extent as possible, there has been verification from outside sources. Much of the material presented now is printed for the first time. This notably is true in regard to the settlement of the Muddy, the southern point of Nevada, which in early political times was a part of Arizona Territory and hence comes within this work's purview. There has been inclusion of the march of the Mormon Battalion and of the Californian, New Mexican and Mexican settlements, as affecting the major features of Arizona's agricultural settlement and as contributing to a more concrete grasp of the idea that drove the Mormon pioneers far afield from the relative comfort of their Church centers. JAS. H. McCLINTOCK, Arizona State Historian. Phoenix, Arizona, May 31, 1921. SUMMARY OF SUBJECTS Chapter One WILDERNESS BREAKERS--Mormon Colonization in the West; Pioneers in Agriculture; First Farmers in Many States; The Wilderness Has Been Kept Broken. Chapter Two THE MORMON BATTALION--Soldiers Who Sought No Strife; California Was the Goal; Organization of the Battalion; Cooke Succeeds to the Command; The March Through the Southwest; Capture of the Pueblo of Tucson; Congratulation on Its Achievement; Mapping the Way Through Arizona; Manufactures of the Arizona Indians; Cooke's Story of the March; Tyler's Record of the Expedition; Henry Standage's Personal Journal; California Towns and Soldier Experiences; Christopher Layton's Soldiering; Western Dash of the Kearny Dragoons. Chapter Three THE BATTALION'S MUSTER-OUT--Heading Eastward Toward "Home"; With the Pueblo Detachment; California Comments on the Battalion; Leaders of the Battalion; Passing of the Battalion Membership; A Memorial of Noble Conception; Battalion Men Who Became Arizonans. Chapter Four