For many years, Sigma Delta Alpha enjoyed a certain amount of notoriety not enjoyed by other student organizations at the University. Its membership included four of the most important student leadership positions at the university: the Yearbook editor, the senior class president, the Athletic Society president, and the ROTC Battalion Commander. Every activity sponsored by the school administration was consulted with the Sigma Delta Alpha chapter president at the University in Río Piedras. In 1929, the Beta Chapter at the Colegio de Mayagüez (University of Puerto Rico at Mayagüez) was established; thus the original chapter came to be known as Alpha.