Liú Zhēn 劉珍 (?–126), zì Qiūsūn 秋孫 (his given name is also recorded as Bǎo 寶), native of Lǐyáng 酈陽 in Nányáng 南陽 (modern Hénán). One of the principal early compilers of the Dōngguān Hànjì 東觀漢記 (KR2d0002). Liú entered the imperial library at the Eastern Lodge (Dōngguān 東觀) in the reign of Hàn Āndì 漢安帝, holding successively the offices of Attendant Scholar of the Yellow Gate (黃門侍郎), Imperial Censor (侍御史), and Internal Counsellor (諫議大夫); he ended his career as Court Clerk of the Capital (宗正). His HòuHànshū biography (HòuHànshū 80上, Wényuàn 文苑列傳) records that in 109 CE Empress Dowager Dèng 鄧太后 ordered him together with Liú Tāotú 劉騊駼 to compose biographies of “noted ministers since the Jiànwǔ 建武 reign,” continuing the guóshǐ 國史 tradition begun under Hàn Mǐngdì 漢明帝. He also collated and corrected texts in the imperial library and authored a Shìmíng 釋名 word-explication compendium and other lexicographical works (now mostly lost). The Sìkù tíyào (cited in KR2d0002) corrects an error in the Suíshū jīngjí zhì by noting that Liú Zhēn never held the post of Chángshuǐ Colonel 長水校尉. Death date 126 follows the standard reading of his HòuHànshū biography. Not in CBDB with confident match (multiple homonyms).