Sean Callahan/ Daniel Howarth (ILT)
(2)
Daniel Callahan (EDT)/ Bruce Jennings (EDT)
(1)
Daniel Callahan (EDT)/ Ruud H. J. Ter Meulen (EDT)/ Eva Topinkova (EDT)
(1)
Daniel Callahan/ Angela A. Wasunna
(1)
Lee Trepanier (EDT)/ Eugene Callahan (EDT)/ Grant Havers (CON)/ David Corey (CON)/ Daniel John Sportiello (CON)
(1)
Margaret Urban Walker/ Sandra Lee Bartky (CON)/ Daniel Callahan (CON)/ Joan C. Callahan (CON)/ Peggy DesAutels (CON)
(1)
Mark J. Hanson (EDT)/ Daniel Callahan (EDT)/ Gregory E. Kaebnick (EDT)
(1)