Mixer
worked in graphic arts in New York, Oklahoma City and Fort Worth,
Texas, before moving to San Diego to work in an aircraft manufacturing
plant. He returned to Fort Worth in 1943 and joined the U.S. Navy.
Stationed in Chicago, he was a visual aids graphic artist.
In
his personal time, Mixer painted Western scenes, and his first sales
came through a Chicago sporting goods store. Discharged from the
service in 1946, he brought his wife, Evelyn Leonard, whom he’d married
in 1941, back to Oklahoma, where he built a house and studio near
Arcadia/Edmond.
Mixer became a
well-known local Western artist during the 1950s and 1960s. Livestock,
particularly horses, became his specialty, and his work graced the
covers of Western Horseman, Quarter Horse Journal, Cattleman, and
Oklahoma Today. In 1968, the American Quarter Horse Association
commissioned Mixer to paint "the ideal American Quarter Horse," and six
other breed associations followed suit. He depicted the ideal Pinto,
Paint, Palomino, Appaloosa, Buckskin and Pony of the Americas.
Briefly
retired during the 1980s, Mixer resumed his artistic productions in the
mid-1990s, still working from a studio near Arcadia.
Mixer was inducted in the American Quarter Horse Hall of Fame in 1993.