Mr. Wheeler is also the person behind the loved and hated sweet-expressions, which provide a way of writing lisp using Python-style indentation [1].
1. http://www.dwheeler.com/sloccount/ 2. http://www.dwheeler.com/trusting-trust/
He is the co-inventor of "Burrows–Wheeler transform", which is a key component in any modern genomics analysis pipeline, used in bzip2 (the "b" stands for BWT), etc.