Ashley Chantler (EDT)/ David Higgins (EDT)
(2)
David Higgins (EDT)/ Paul Jones (EDT)/ Pauric Mcgowan (EDT)
(2)
Dante Alighieri/ C. H. Sisson (TRN)/ David H. Higgins (EDT)
(1)
David Higgins (EDT)/ Sharon Ruston (EDT)
(1)
David Higgins (EDT)/ Steven Toms (EDT)
(1)
Dieter Dowe (EDT)/ Heinz-Gerhard Haupt (EDT)/ Dieter Langewiesche (EDT)/ Jonathan Sperber (EDT)/ David Higgins (TRN)
(1)
Dietrich Bonhoeffer/ Larry Rasmussen (EDT)/ Isabel Best (TRN)/ David Higgins (TRN)
(1)
Ignazio Cabras (EDT)/ David Higgins (EDT)
(1)
Ignazio Cabras (EDT)/ David Higgins (EDT)/ David Preece (EDT)
(1)
Kathleen Higgins (EDT)/ David Sherman (EDT)
(1)
Kathleen M. Higgins (EDT)/ David Sherman (EDT)
(1)
Marianne Williams Tobias (EDT)/ George Calder (EDT)/ Nancy J. Guyer (EDT)/ C. David Higgins (EDT)/ Charles H. Webb (EDT)
(1)
Robert C. Solomon (EDT)/ Kathleen M. Higgins (EDT)/ Roger T. Ames (CON)/ J Baird Callicott (CON)/ David L. Hall (CON)
(1)
Russell Goulbourne (EDT)/ David Higgins (EDT)
(1)