Dīng Yuánjiàn 丁元薦 (zì Chángrú 長孺), late-Míng clinical disciple of 繆希雍 Miù Xīyōng who edited and compiled KR3eq034 Xiānxǐngzhāi yīxué guǎng bǐjì, ensuring the work’s posthumous circulation. The “Dīng Chángrú editorial precedent” was the canonical model invoked by 周鑅 Zhōu Yīng in his 1843 preface to KR3eq009 Huíchūn lù. The 丁長孺 in earlier notes is the same person.