Since 1984, Mr. Stack has owned his own business, Thomas J. Stack, Jr., LTD. He is a member of the Illinois CPA Society, the American Institute of Certified Public Accountants, and the Ledger and Quill Society of DePaul University. Mr. Stack also serves as a board member of DePaul University’s President’s Club and the Chicago Police Chaplains Ministry. Mr. Stack has a long history with Haymarket Center as a volunteer. Haymarket Center’s founder, Monsignor Ignatius McDermott, was Mr. Stack’s great uncle.