R. Kent Dybvig (R for Robot?)
Home page at http://www.cs.indiana.edu/~dyb/
Developer (with the late RobertHieb) of the SyntaxCase macro system for the SchemeLanguage (see DefineSyntax).
Author of the book TheSchemeProgrammingLanguage and many Scheme-related research papers. One of the editors of the RevisedReportOnAlgorithmicLanguageScheme.