A. J. Schofield (EDT)/ William Gray Johnson (EDT)/ Colleen M. Beck (EDT)/ World Archaeological Congress 1999 Cape (EDT)
(1)
Susan Penny Gray/ William A. Streshly/ George Manthey (FRW)
(1)
Thomas Zeller/ Thomas Cissarek/ William A. Gray/ Knut Kroeger
(1)
William A. Streshly/ Susan Penny Gray
(1)
William A. Streshly/ Susan Penny Gray/ Larry E. Frase/ Fenwick W. English (FRW)
(1)
William Berens/ A. Irving Hallowell/ Jennifer S. H. Brown (EDT)/ Susan Elaine Gray (EDT)
(1)