Article: In America, Episcopalian Dennis Bennett is sometimes cited as one of the charismatic movement's seminal influence. In the United Kingdom, Colin Urquhart, Michael Harper, David Watson and others were in the vanguard of similar developments. The Massey conference in New Zealand, 1964 was attended by several Anglicans, including the Rev. Ray Muller, who went on to invite Bennett to New Zealand in 1966, and played a leading role in developing and promoting the Life in the Spirit seminars. Other Charismatic movement leaders in New Zealand include Bill Subritzky.

Question: What American is considered to have been a seminal influence in the charismatic movement?
Dennis Bennett