Sources for additional biographical  info 

 * http://www.uschamber.com/about/board/thomas-j-donohue
 * http://www.uschamber.com/sites/default/files/board/donohuetombio1004.pdf
 * http://www.politico.com/arena/bio/thomas_j_donohue.html
 * http://people.forbes.com/profile/thomas-j-donohue/75496
 * http://www.nndb.com/people/481/000131088/