Walker, Moses Fleetwood
1856-1924 · Contribution: 1891-1900s
Exploding artillery shell; motion picture reel loading and changing mechanisms

Portraits are AI-generated interpretations, not photographs.
Impact on the world
Beyond breaking baseball's color barrier decades before Jackie Robinson, Walker held four patents, including an exploding artillery shell (1891) and three related to loading and changing reels for early motion picture projection equipment. He also holds a foundational place in American sports history as the first African American to play major-league-level professional baseball openly as a Black man, debuting with the Toledo Blue Stockings in 1884; when organized baseball began excluding Black players in 1889, he became the sport's last Black player for 63 years until Jackie Robinson's 1947 debut.
Life & background
Widely recognized as one of the first Black players in Major League Baseball, playing in the 1880s well before Jackie Robinson's more widely known 1947 debut, Walker was also an inventor, holding a patent for a detachable shirt collar in 1891 and three further patents related to mechanisms for loading and changing film reels in early motion picture equipment.
Sources
- Society for American Baseball Research (SABR); Encyclopedia.com
More in Industrial & Mechanical
Boyd, Henry
1802-1886
Invented the Boyd bedstead, a reinforced wooden bed frame design; founded a bedstead factory
Brooks, Charles
1865-unknown
Street sweeper truck design; paper punch
Coffey, Cornelius Robinson
1903-1994
Became the first African American certified aircraft mechanic in the United States in 1932 and designed a patented carburetor heating system that prevented icing, allowing aircraft to fly safely in cold and wet weather, a design principle still used in aviation today
Crosthwait, David Jr.
1892-1976
Heating, ventilation, and air conditioning (HVAC) system design