Huáng Bǎijiā 黃百家 (1643–c. 1709), zì Zhǔyī 主一 (also Bùshī 不失), of Yúyáo 餘姚 (Shàoxīng prefecture, Zhèjiāng), the youngest son of 黃宗羲 Huáng Zōngxī (1610–1695). CBDB id 34131 (birthyear 1643 confirmed; deathyear not recorded in BIOG_MAIN, but conventionally given as c. 1709 in the secondary literature).
Inheriting his father’s interests in astronomy, mathematics and history, Bǎijiā assisted Huáng Zōngxī on the SòngYuán xué àn 宋元學案 (left unfinished at his father’s death and ultimately completed by Quán Zǔwàng 全祖望 in the 1750s), and he is named in the Wilkinson manual (§42547) for his marathon reading of the Twenty-One Histories at the Hǎihuì temple 海會寺 in Yínxiàn 鄞縣 (Níngbō) together with his close friend Wàn Sītóng 萬斯同 (1638–1702) in 1666–1667. He also worked on the calendar-reform project under the Qiānwénjiān commissioner Liáng Xíngdòng 梁鋐董 and was one of the few early Qīng scholars with a working knowledge of internal Chinese-mathematical-astronomical sources.
Compiler of the fùlù 坿錄 to his father’s Nánléi wén àn 南雷文案 (KR4f0008), and named as compiler (撰) of KR3f0035 Gōu gǔ jǔyú 句股矩矱 — a small work on right-triangle (Pythagorean) geometry — in the KR3f division. He also contributed several biographical xué àn entries in the SòngYuán xué àn that were taken over verbatim by Quán Zǔwàng’s recension. The Hēishuǐ jiāpǔ 黑水家譜 (“Hēishuǐ” being his late hào) and the Xué jì 學箕 short essays are also attributed to him in the Yúyáo family transmission.