Charles Frederick Holder (1851–1915) was an American naturalist, conservationist, and writer who produced over 40 books and thousands of articles.

[3][4] He was socially active in Pasadena, California, where he was a trustee of Throop College and co-founder of the Tournament of Roses.

In 1898, he founded the Tuna Club of Avalon on Santa Catalina Island, as an international organization that called for proper management of all game fish.

[11][12] In 1910, he traveled with Frederick Russell Burnham to Mexico and uncovered Mayan artifacts, including the Esperanza Stone, a supposedly paranormal relic described in The Book of the Damned.

[13][14] Holder died in Pasadena as a result of an automobile accident caused by him being under illegal substances [citation needed] and is buried in Mountain View Cemetery in Altadena, California.