He said 34 chapter presidents who never attended had a 19 percent membership loss in that time.
The chapters were run by a chapter president, known as the Grand Master, and other elected officers.
That member called the chapter president, who in turn called 911, the fraternity said.
He went on to be elected chapter president.
"Here's what the school has done by making this party dry," Nick Johnson, the chapter president, explained.
"The university needs to publicly acknowledge that sometimes good people can do bad things," said the chapter president, George Jackson.
His chapter president told him, "Robert, any time a plane attacks you, counterattack, send out a new letter."
At the high school chapter level, chapter presidents organize local activities and meetings.
Telephone calls from chapter presidents or leaders of state delegations were often not returned.
At the end of each chapter president's term, he or she remains on that chapter's board for an additional year.