Ishikawa Kinichirou, the most influential of the four, came to Taiwan twice and lived on the island for eighteen years, teaching at the Tohoku National Language School and the Tohoku Normal School.
以影響最深的石川欽一郎來說，他先後兩度來台，執教於台北國語學校及師範學校，在台灣待了十八年之久。