technique in the Southwest and formed a corps of Big Six Conference flag swingers for the Pride of Oklahoma Marching Band. The 1938 squad was all male, but the group was co-ed within two years. By 1940, O.U. flag swingers were participating at basketball games and creating innovative routines with two flags. The OU color guard may be the oldest existing unit of its kind in American marching bands. As Director of the OU band, Haug wrote a training guide for flag swinging and an article for a swing flag brochure, assisting the spread of the trend to other marching bands. In 1965, Haug succeeded in combining the swing flag with a baton. It was an idea on which he had worked for years. He called his invention the "twirl-flag" baton. He wrote that it was "a truly American flag baton idea suitable for solo and corps exhibition." It was a 32" baton with a colored flag at each end that rotated around the shaft to prevent fouling. The invention was first featured by the University of Arkansas marching band at the Cotton Bowl on January 1, 1966, and later manufactured by Kraskin Batons of Minneapolis. For all of Haug's efforts, however, the "twirl-flag" baton never caught on, but regular flags and batons remained standard for most marching bands. During the 1950s and 1960s, much of the impetus for the evolution of the modern color guard came from the arena of competitive drum and bugle corps. Pioneers from these corps traveled to other areas of the country to teach, introducing color guards to more traditional bands. In 1962, Vincent R. DiNino, Director of the Longhorn Band, "The Showband of the Southwest", at the University of Texas began the use big 4'x6' flags in the school colors (orange and white) as a group marching with the band at halftime shows at football games. Since flags of that type were not then available from any commercial vendors, his wife, Jane DiNino, sewed the flags. The flag poles were made of lightweight dowel wood purchased at a local lumber yard with flag holders purchased from a local army-navy surplus store. Movies of the Longhorn Band taken by the Athletic Department at the University of Texas captured the first use of big flags by a college marching band. Director DiNino charged a band member, Larry Cullison, with the duty of charting movements of the