Chéng Zhītián 程芝田 (early 19th c., 清), Qúzhōu 衢州 physician and teacher of 雷逸仙 Léi Yìxiān (the father of 雷豐 Léi Fēng). Mentioned in Léi Fēng’s Shíbìng lùn (KR3eg002) preface as the first-generation source of the family’s wēnbìng tradition.