in Sigma Pi Who's Who in Sigma Pi is a directory of every member of Sigma Pi. It is published at least once a decade, but all records are kept on computers for viewing at any time by Executive Office Staff or initiated member through the MySigmaPi online portal. It has both alphabetical and geographical information on members. Geographical information can be sorted by region or chapter. Song book The first publication, entitled Songs of Sigma Pi, was published in 1922. The song book was not reprinted until 1968, when Sigma Pi Sings was published. It was edited by William L. Lane and included all the songs that the Fraternity considered important with lyrics and sheet music. Notable Sigma Pi brothers and alumni With more than 100 active chapters and colonies in the United States and Canada, Sigma Pi has over 110,000 alumni. Sigma Pi has alumni who are notable in many different industries and fields. Local chapter or member misconduct In November 2014, the chapter at Elon University temporarily lost its charter after its national office, as well as Elon officials, were notified about several new members suffering injuries from being forced to lie down on bottle caps. The chapter was a repeat hazing offender. The chapter was eligible to seek reinstatement on campus in fall 2017. In December 2016, a former chapter of the fraternity made national headlines after disturbing photos leaked of former members hazing at the then-closed Hofstra University chapter. A former pledge and expelled member of the fraternity leaked photos showing individuals who appear to be pledges locked in small cages and photos showing additional individuals who appear to be pledges shirtless, blindfolded, covered in hot sauce, and kneeling in front of a swastika. On March 1, 2016 - nine months prior to the release of these photos - the Grand Council of Sigma Pi revoked the chapter's charter due to "violations of both Fraternity and FIPG risk management policies." In October 2016, Gamma-Sigma chapter at the University of Missouri opted to withdraw from the university's Greek community due to alleged overzealous enforcement of the student code of conduct against members of the chapter. Shortly after the chapter withdrew from the Greek community, the University of Missouri banned Sigma Pi from campus. This rift was caused when a pledge was sent to an emergency room with bruises on his buttocks and a blood alcohol level