Graham Breed
Graham Breed is a software engineer, English teacher, and one of the architects of the regular mapping paradigm, to which he gave that name. The breedsma and breed temperament are named for him.
Original music theory
Graham's Intonation Information web site features a number of original music theory articles, including some of the first to employ vals.
Temperament finder
Graham created the online temperament finder. For a description of a use-case, see Creating Scala scl files for rank two temperaments.