Knuth's hyphenation patterns for English in American orthography (his hyphen.tex) appear here as ushyph1.tex; these patterns will be installed for the default language in any conventional TeX distribution.

In 1990, extended patterns for hyphenation of US English were published (TUGboat 11(1)). They appear here as ushyphen.tex (the basic set) and ushyphmax.tex (a set that is believed to find all admissable hyphenation points).

The author is Gerard Kuiken.