author
Known for clear, practical work in mathematics and TeX, this author is associated with the mathematical publishing world as well as technical writing tools.
Available public information on David G. Cantor is quite limited. A reliable source I could confirm is his contributor page on CTAN, which links him to LaTeX work, including the package dropping.
Because I could not confirm a fuller biographical profile from strong sources during this search, it would be safest to describe him as a mathematics-related author and technical contributor rather than add personal or career details that may be inaccurate.