This article examines the efforts of two county instructors (jiaoyu), Xie Jinluan and Zheng Jiancai, to bolster the security of the maritime frontier and stabilize local society in early 19th century Fujian and Taiwan. Occurring during the Jiaqing transition in which Chinese elites increasingly voiced concerns about problems afflicting the empire, Xie and Zheng waged an information campaign to lobby for local issues while embedded in county educational posts. Printing their treatises through their alma mater, the Aofeng Academy, Fuzhou’s premier educational institution that promoted a rigorous Neo-Confucian scholarly orientation, and using well-positioned Aofeng alumni to take their causes to Beijing, the instructors were able to make changes on the local level and provide Qing officials with a new source of “expert” local information that bypassed the regular bureaucracy. By producing information on themes of local governance and manipulating the elite network of the Aofeng Academy that connected Fujian to circles of power in Beijing, Xie and Zheng became models of local political action, influencing new generations of Fujianese scholars over the 19th century.