Kathryn Petras/ Ross Petras
(18)
Ross Petras/ Kathryn Petras
(11)
Marilyn Ross/ Kathryn Leigh Scott (NRT)
(9)
Kathryn Petras (EDT)/ Ross Petras/ Kathryn Petras/ Ross Petras (EDT)
(2)
Fraser, Lindsey,Ross, Kathryn
(1)
Kathryn Graham/ Ross Homel
(1)
Kathryn Kilby Borland/ Helen Ross Speicher/ Fred M. Irvin (ILT)
(1)
Kathryn Petras (COM)/ Ross Petras (COM)
(1)
Kathryn Petras (EDT)/ Ross Petras (EDT)
(1)
Kathryn Petras/ George Ross/ Ross Petras/ George Petras
(1)
Kathryn Petras/ Ross Petras/ R. O. Blechman (ILT)
(1)
Kathryn Petras/ Tetsu Yamazaki/ Ross Petras
(1)
Thomas Babor/ Raul Caetano/ Sally Casswell/ Griffith Edwards/ Norman Giesbrecht/ Kathryn Graham/ Joel W. Grube/ Linda Hill/ Harold D. Holder/ Ross Homel/ Michael Livingston/ Esa/ Osterberg
(1)