Hé Tóngyuán 何彤園 (also written 何彤元; respectful name Tóngyuángōng 彤園公), Qing scholar-physician of late-Qiánlóng to Jiāqìng era; lifedates not recoverable from current biographical sources, though the work-completion in his old age and posthumous publication by descendants in 1855 places him a generation or more before the Xiánfēng preface. No CBDB record.
His one preserved medical work is the Dàfāngmài 大方脈 (KR3eh020, 12 juǎn), a comprehensive family-transmitted internal-medicine handbook explicitly modelled on the editorial schema of the imperial Yīzōng jīnjiàn 醫宗金鑑 (KR3eh004). The compiler’s grandson Jìng’ān 靜安 and grand-nephew Xīngpǔ 星浦 brought the work to press in Xiánfēng 5 = 1855 with a preface by Hé Dūn’ān 何敦, Hé Tóngyuán’s grandnephew.
The title’s Dàfāngmài 大方脈 (“greater pulse-prescribing”) is the Qing technical term for adult-internal-medicine specialty, distinguishing it from paediatric (xiǎofāngmài 小方脈) and external (wàikē) medicine.