because his wife loved roses and it was also her first name (Rose Jacobs). Five years later, in 1926, Jacobs also suggested that the song currently sung at LEAD schools and Grand Chapter Congress events, Rose of Deltasig be adopted as the official song of the fraternity. The Central Office Delta Sigma Pi's national administrative headquarters was established in Chicago, Illinois, in 1924. In the fall of 1956, it moved to 330 South Campus Avenue in Oxford, Ohio (near Cincinnati and adjacent to the Miami University campus). In 1970, the original building nearly doubled in size with the addition of wings on either side of the building. Later in 2010 extensive renovations, including a courtyard featuring engraved bricks, were completed to make the building more functional and accessible. The Executive Director manages day-to-day functions of the Central Office and leads a full-time staff. Chapters Collegiate chapters Since its inception in 1907, Delta Sigma Pi has installed 298 chapters, of which 224 are currently active. In addition to these chapters, Delta Sigma Pi currently has active colonies at 7 universities. The organization is distinctly separate from U.S. social fraternities with similar names, including Delta Sigma Phi and Sigma Pi. Alumni chapters Delta Sigma Pi has 57 franchised Alumni Chapters on its roll for the 2018-2019 year in the United States, and over 40 more locations worldwide have Brothers with an interest in starting a new Alumni Chapter. See also Professional fraternities and sororities Professional Fraternity Association References Professional fraternities and sororities in the United States Student organizations established in 1907 Professional Fraternity Association 1907 establishments in New York City