Kimberly (Metropolitan State University of Denver Klimek USA),Pamela L. (Metropolitan State University of Denver Troyer USA),Sarah Davis-Secord,Bryan C. Keene
（2）
C. Markschies (EDT)/ H. Marx-wolf (EDT)/ J. Secord (EDT)/ M. Vinzent (EDT)
（1）
Charles Darwin/ James A. Secord (EDT)
（1）
Charles Darwin;Burkhardt, Frederick (American American Council of Learned Societies),Secord, James A. (University of Cambridge),The Editors of the Darwin Correspondence Project (University of Cambridg
（1）
Charles Darwin;Burkhardt, Frederick H. (American Council of Learned Societies),Secord, James A. (University of Cambridge),The Editors of the Darwin Correspondence Project (University of Cambridge)
（1）
Charles Lyell/ James A. Secord
（1）
Dan Secord/ Dwight Nacaytuna (ILT)
（1）
Gareth Abbott； Catherine Britton； William Secord
（1）
Gilbert White/ Anne Secord
（1）
