(Reprinted from earlier editions for the fifth in 1968)

For Research Aid:

First, as always, to the patient staff of the Western History Department of the Denver Public Library—Ina T. Aulls, Alys Freeze, Opal Harber and Katherine Hawkins—who find the answers to many puzzlers. Secondly, Agnes Wright Spring, Colorado historian, always generous; and helpful others at the State Museum—Dolores Renze, Frances Shea, Dorothy Stewart and Kenneth Watson. Next, Lorena Jones and Allen Young of The Denver Post library, unfailingly obliging. My gratitude to all.

For Photographs and Sketches:

The Western History Department of the Denver Public Library has supplied the great majority of the illustrations used. The Colorado Historical Society contributed two photographs; the Oshkosh Public Museum, one; Mrs. Belle Taylor, two; the Mile High Center, one; and one gift of Fred Mazzulla was graciously rehabilitated by Phil Slattery and Bill Brown of The Denver Post.

For Proofreading:

Mrs. J. Alvin Fitzell continues to donate her time and aptitude for catching typographical errors in each successive booklet.