Violet MacMillan, who played "little girl" Dorothy, was 29 at the time of filming. This was her first "non-britches" film role, as she had played boys in The Patchwork Girl of Oz (1914) and The Magic Cloak of Oz (1914).
L. Frank Baum incorporated elements of this film into his 1915 entry in the Oz book series The Scarecrow of Oz. New characters who made the transition were King Krewl, Lord Googly-Goo, Princess Gloria, and Prince Pon. Interventions by already-existing characters Button Bright and the Scarecrow were also retained. The witch Mombi had already been defeated in the main book series, so a nearly identical witch named Blinkie took her place. The Lonesome Zoop and his animal companions never made the transition to Baum's pages, and most of the other characters such as Dorothy and the Wizard were eliminated from the volume's main plot.
His Majesty, the Scarecrow of Oz was re-released with the 70th anniversary collection for The Wizard of Oz (1939), along with three other silent films: The Magic Cloak of Oz (1914), The The Patchwork Girl of Oz (1914), and The Wizard of Oz (1925).
In 2024, Nate Barlow restored the film in 4K from three partial prints: two reels of safety positive, three reels of the tinted 1919 Moovical release print, and two reels of original picture negative. The original picture negative had been presumed lost until he rediscovered it at the Library of Congress.
Jacqueline Lovell, star of several erotic thrillers and comedies, narrated the 1996 release.