Irwin M. Brodo/ Sylvia Duran Sharnoff (PHT)/ Stephen Sharnoff (PHT)/ Susan Laurie-Bourque (ILT)
(1)
Irwin M. Brodo/ Sylvia Duran Sharnoff/ Stephen Sharnoff/ Canadian Museum of Nature (COR)
(1)
Richard S. Irwin M.D. (EDT)/ Alan Lisbon M.D. (EDT)/ James M. Rippe M.D. (EDT)/ Stephen O. Heard M.D. (EDT)
(1)
Stephen Irwin (CON)/ Vince Aletti/ Pilar Ribal/ Gerard Goodrow
(1)
Stephen Irwin/ J. B. Irwin
(1)