[7] Peet became a missionary in 1916,[8] after her widowed father remarried, and sailed for Tokyo under the auspices of the Genesee Conference of the Methodist Episcopal Church.

She testified before the House Select Committee Investigating National Defense Migration,[13] voicing her opposition to the incarceration of Japanese and Japanese-American residents of the West Coast.

Is there anything in their history in this area to justify such a fear of them developing overnight?”[15][16] "Progressive Christians like Peet were among the few dissenting voices," noted Buddhist scholar Duncan Ryuken Williams.

[17] Historian Ellen Eisenberg observed that, unlike clergymen in other cities, "Peet spoke as an individual, without any organizational support.

"[18] Like some other former missionaries with useful language, pedagogical and cultural skills, Peet worked at internment camps in Nyssa, Oregon[19] and Minidoka, Idaho, mostly supporting teen students in their preparations for college.