8x10 BW publicity still, with pinholes indicating use as a lobby card, for FBO/RKO's 1928 Tom Mix vehicle, "King Cowboy" (his nickname).

Copies of a trailer exist, but it's doubtful the film survived.

About 'King Cowboy.'
(From Birchard (1993).

FBO Pictures. Distributed by RKO Productions, Inc. Released November 26, 1928. Length: 7 reels (6,269 feet).

Production Started: August 9, 1928. Production Completed: August 25,1928.

Producer: William LeBaron. Director: Robert De Lacy. Screenplay: Frank Howard Clark. Story: S.E.V. Taylor. Titles: Helen Gregg and Randolph Bardett. Assistant Director: James Dugan. Film Editors: Henry Weber and Tod Cheesman. Photography: Norman De Vol.

Cast: Tom Mix (Tex Rogers), Sally Blane (Polly Randall), Lew Meehan (Ralph Bennett), Barney Furey ("Shorty" Sims), Frank Leigh (Abdul El Hassan), Wynn Mace (Ben Suliman Ali), Robert Fleming (Jim Randall).

Working Tide: Drums of Araby

Still Code: K.C.

Note: A preview trailer for King Cowboy was available in 16mm and 8mm film on the collectors' market some years ago.

Mori. Variety, 12/26/28

Born in Mix Run, Penn., on Jan. 6, 1880, Tom Mix appeared in more than 300 films (counting "shorts") from 1909 to 1935. He occasionally filmed in Newhall from 1916 to the mid-1920s and set up one of his early "Mixville" Western movie towns between Spruce Street (now called Main Street) and Newhall Avenue.

A part-time Newhall resident during that period, Mix lived across the street (probably on Walnut Street) from the Thibaudeau home, which was located at the southwest corner of Market Street and Newhall Avenue. In a televised interview, lifelong Newhall resident Gladys Thibaudeau Laney (1910-2014) said she observed Tom buying his sidekick "wonder horse" Tony on her family's property when she was a young girl. The timing works; Tom reportedly purchased Tony for $600 in 1917 from Pat Chrisman (1882-1953), a horse trainer and actor friend who co-starred in a number of Mix films (Birchard 1993:118).

In the late Teens, Mix established his most famous "Mixville" on Glendale Boulevard in the Silver Lake section of Los Angeles.

Prior to his movie career, Mix appeared in a series of Wild West shows where he was noticed by pioneering film producer Col. William N. Selig, who hired him to handle horses. He worked with Selig, writing, directing and acting, until 1917, when he signed with Fox to star in moving pictures alongside Tony.

Mix reached the height of his popularity during the 1920s, assuming the mantle of King of the Cowboys from William S. Hart, who retired from filming in 1925. But Mix did not adapt well to "talkies," and his career waned in the 1930s. His popularity remained intact, however, as he took his show on the road on the Western performance circuit. It was on the road that he would perish, when his 1937 Cord sent him to an untimely demise on Oct. 12, 1940, south of Florence, Ariz. Adding insult to injury and death, most of the 85 films he made with Fox were lost in a 1937 fire at the company's East Coast storage facility. But Mix was remembered fondly through his radio show and comic books, which outlived him by more than a decade.