The early Boston National League clubs wore only the city's name or an old English B on their jerseys and went by the name Boston Nationals. In 1901, the Nationals began wearing BOSTON across their chest. However, the newly-formed Boston Americans franchise also placed BOSTON across their chests and used a similar style cap that the Nationals were using. This created identity conflicts over the course of the next few years. The Nationals changed their nickname several times and used the Old English B to distinguish themselves from the Americans. It was in 1912, that a uniform change signified the birth of the Braves organization and the separation from the crosstown Red Sox.


At this time, the league had not yet adopted the rule that required numbers on the backs of the jerseys. The 1929 uniforms bore a large Indian head on the backs of each jersey. By 1935, standardized numbers were now required on the back of each jersey and the Indian head was transplanted to the sleeve. The 1935 uniform, the last one Babe Ruth wore as a player, was a highly photographed and recognizable uniform.


The team changed direction and became known as the Bees. With this, the team made royal blue and gold the new trim colors and put BOSTON back on the shirts for the first time since 1912. In 1939, the gold and blue were pushed aside for the return of red and navy. In 1940, the Old English B once again appeared on the home jerseys. By 1945, the Bees name was slipping and the organization became the Braves once again, with the unveiling of their home uniforms that had BRAVES across the chest.


The next set of uniforms had an overabundance of red and navy along with a new slanted script version of BRAVES across the front. In addition, the fronts of the uniforms now had a tomahawk, that became destined to stay on the uniforms after the organization won the 1948 pennant. A unique uniform during this time was a satin uniform that was designed specifically for night games.