author
b. 1879
A little-known early 20th-century writer, he left behind both a practical guide to engineering careers and a vivid desert romance set in the American Southwest. His surviving books suggest a versatile author who could move easily between useful nonfiction and atmospheric storytelling.

by Charles M. (Charles Marcus) Horton

by Charles M. (Charles Marcus) Horton
Charles M. Horton, listed by Project Gutenberg as Charles M. (Charles Marcus) Horton, 1879-, is the author of at least two works that have remained in circulation through public-domain archives: Opportunities in Engineering and Bred of the Desert: A Horse and a Romance.
Those two books show an interesting range. Opportunities in Engineering, published in the early 1920s, is a practical career guide aimed at readers considering the engineering profession. Bred of the Desert is a novel set in New Mexico, with horses, hardship, and romance at its center. Together, they suggest a writer comfortable with both plainspoken advice and scene-rich fiction.
Reliable biographical details about Horton himself are scarce in the sources I could confirm, beyond his full name and birth year. Because so little verified personal information is readily available, he is best remembered today through the books themselves rather than through a well-documented public life.