Sūn Zuò 孫作 (b. c. 1320?–d. late 14th c.), zì Dàyǎ 大雅 (conventionally used in place of his personal name; alternate zì Cìzhī 次知), hào Dōngjiāzǐ 東家子, native of Jiāngyīn 江陰 (Chángzhōu prefecture). Fled the late-Yuán Zhìzhèng wars first to Wú, where he was briefly recruited by Zhāng Shìchéng 張士誠, then withdrew to Sōngjiāng 松江. Summoned in Hóngwǔ 6 / guǐchǒu (1373) to compile the Rìlì 日歷; on completion appointed Hànlínyuàn biānxiū 翰林院編修; pleading age and illness, sent out as Education Officer of Tàipíng 太平 prefecture, then recalled as Guózǐ zhùjiào 國子助教 and promoted to sīyè 司業; demoted to commoner status for an unspecified affair, restored as jiàoyù 教諭 of Chánglè 長樂. Personal friend of Sòng Lián 宋濂, who composed his Dōngjiāzǐ zhuàn 東家子傳; his record is appended in Míng shǐ Wényuàn zhuàn to Táo Zōngyí 陶宗儀’s biography. Distinctive late-Yuán / early-Míng verse imitator of Huáng Tíngjiān 黃庭堅 and the Jiāngxī school 江西派. His collection is KR4e0031 Cāngluó jí 滄螺集. CBDB id 34381 records the name and Míng dynasty but no dates; the activity-pattern places his birth in the late 1310s / early 1320s and his death in the late 1380s or early 1390s.