ACKNOWLEDGEMENTS
I am grateful to Diane Stoecker, Ed Carpenter, Mark Wells, and Larry Brand (former students and post docs), who sent me written remembrances of Bob, parts of which are cited here and all of which greatly aided in the writing of this memoriam. I also thank Bob Andersen for providing photographs of Bob Guillard and a comprehensive listing of Bob's publications, which is shown in supplementary materials.
SUPPLEMENTARY DATA
Supplementary data associated with this article can be found online at http://dx.doi.org/10.2216/16-125.1.s1.