- 59ers' Directory – Colorado Argonauts
A directory of prospector arrivals, removals, deaths, marriages, children, property, mines, and ranches, with names of old towns, mining camps, gulches, mountains, rivers, creeks, and other matters relating to the setting of their lives in the Pikes Peak Region.
- Colorado Mining Fatalities pre-1963
Personal information and dates of persons killed as well as major mine accidents, causes of accidents, mining activity per county, poll of nationalities and more.
- Sons of Colorado Index 1906 - 1908
Index of articles including biographies and obituaries of Colorado pioneers which appeared in the pages of the Sons of Colorado. This was published by the pioneer society, Sons of Colorado. The title was later changed to The Trail.
- Trail Index 1908 – 1929
Index of articles including profiles and obituaries of pioneers that was published 1908-1929 by the Sons of Colorado.