Edward H. Judge (EDT)/ John W. Langdon (EDT)
(2)
Grenville Astill (EDT)/ John Langdon (EDT)
(1)
John D. Langdon (EDT)/ Mohan F. Patel (EDT)/ Robert Ord (EDT)/ Peter A. Brennan (EDT)
(1)
Maryanne Kowaleski (EDT)/ John Langdon (EDT)/ Phillipp R. Schofield (EDT)
(1)
P Langdon (EDT)/ P John Clarkson (EDT)/ P Robinson (EDT)/ Jonathan Lazar (EDT)/ A. Heylighen (EDT)
(1)
P. Langdon (EDT)/ P. John Clarkson (EDT)/ P. Robinson (EDT)
(1)
Richard Goddard (EDT)/ John Langdon (EDT)/ Miriam Muller (EDT)
(1)
Simeon Keates (EDT)/ John Clarkson (EDT)/ Patrick Langdon (EDT)/ Peter Robinson (EDT)
(1)