Aì Xūtáng 艾頊堂 Mid-Qīng Chóngqìng-resident scholar; one of three friends (with 傅怡如 Fù Yírú and 邱東山 Qiū Dōngshān) who patronised the 1847 printing of 王錫鑫 Wáng Xīxīn’s Yòukē qièyào 幼科切要 (KR3ej025). Lifedates unrecorded.