Lonnie E. Underhill

• Genealogy records of the First Arizona Volunteer Infantry Regiment
• Index to the Tombstone, Arizona, Weekly nugget
• Journalism in Tombstone, Arizona, 1879-1882
• The First Arizona Volunteer Infantry, 1865-1866
• The silver tombstone of Edward Schieffelin
• A history of Tombstone, Arizona's devastating fires, 1881-1882
• Gunfight at the O.K. Corral
• Hell on earth
• Index to the 1880 Census of Cochise County, Arizona Territory
• Index to the 1880 Census of Pima County, Arizona Territory
• Index to the Federal census of Arizona for 1860, 1864, and 1870
• Index to the Tombstone, Arizona daily epitaph, 1884; The Tombstone, 1885; and The Tombstone daily record-epitaph, 1885