By the discontinuing of the American Legion Championship in 1980, the Caballeros had won 15 times. The Caballeros would win the Legion National Championship in 1953, 1954, and attained a seven year winning streak from 1958 to 1964. While in Miami, were offered a trip to Havana by the State Department, which was declined.

The Caballeros went on to win their first Legion National Championship. The Caballeros developed into a first rate contender, to which 1951 proved to be a pivotal year.

A month later, however, after regrouping and putting in some extra practice sessions, the Caballeros won their first Legion State Championship at Wildwood, New Jersey over the Jersey Joes of Riverside, the 1948 National Champions. In 1948, the corps attended the Nationals in Miami, finishing fifth but a year later, they were disqualified because they had not finished in the top ten at the 1949 Nationals in Philadelphia. In August of 1947, the Caballeros attended their first National American Legion Championship contest at Randall's Island Stadium in New York City, and placed eighth. A few short weeks later, the corps made its first appearance. George Cadets, including Jim Costello, his brother Bob, future brother-in law John McAuliffe Joe Scarber, and George Hayek. On March 20, 1946, the Caballeros were officially organized by a small group of recent veterans, former members of the St. They have placed in the Top 3 at the DCA World Championship 36 times in 56 appearances. They have completed 5 undefeated seasons, consecutively in 19. They have won the Drum Corps Associates (DCA) World Championship 10 times, the American Legion National Title 16 times, the National Dream Contest 17 times, and the New Jersey State American Legion Title 43 times. The Hawthorne Caballeros, sponsored by American Legion Post #199 in Hawthorne, New Jersey, is a drum and bugle corps entering their 76th season of competition.

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