Guō Yìn 郭印, hào Yìlè jūshì 亦樂居士, native of Chéngdū 成都 (Sìchuān). Zhènghé (1111–18) jìnshì. Held a series of county magistracies — internal evidence in the Yúnxī jí KR4d0175 (specifically the Guò Tóngliángxiàn shī, Rénshòuxiàn shānzhāi shī, and Cìyùn Sòng Nánbó shī) places him in office for fifty years before retiring late to his Yúnxī 雲溪 country villa, where he constructed his yī mǔ zhī yuán (one-mǔ garden) over twenty years’ effort. The Cèng Liú Yuánguī shī line jīnnián suì bāshí (this year my age is 80) shows he reached his eighties.
Friends with Zēng Zào 曾慥 曾慥 (compiler of the Jíshén lù) and Jì Yǒugōng 計有功 (compiler of Táng shī jì shì) — yīshí bóyǎ zhī shì (men of broad-elegance of the time). Hence Guō was also a shèngliú (top-tier) figure, though his collection had long been lost — Sòng shǐ Yìwénzhì and other catalogs do not record him. Lì È’s Sòng shī jì shì preserves only two of his poems (one from QuánShǔ yìwénzhì; one from Sìchuān zǒngzhì).
Internal evidence (Yǎngshēng gē; Dú Yì shī) suggests Guō practised dǎoyǐn (Daoist breath-and-stretch) techniques.
CBDB id 10762 has no lifedates.
His collection survives as Yúnxī jí 雲溪集 KR4d0175 in 12 juǎn (Sìkù Yǒnglè dàdiǎn reconstruction). The title takes the name of his country villa.