楊漢春 Yáng Hànchūn, early-Republican principal of the Chóngmíng 崇明 Sixth Lower Primary School; fellow-student of 刁質明 Diāo Zhìmíng under “Gāo fūzǐ” 高夫子. Wrote the 1924 preface to KR3em038 Hóukē jiāxùn 喉科家訓.