Peter To Rot was born in 1912 at Rakunai in German New Guinea to a Tolai family. His father Angelo Tu Puia was the village chief and one of the first Tolai Catholic converts.
In 1930, Peter undertook the catechist formation at the Sacred Heart Mission of Vunapope. In 1936, Peter married Paula Ia Varpit — the Tolai Catholic marriage. In 1936, Peter began his ministry as lay-catechist at Rakunai.
During the Japanese occupation of New Britain in World War II (1942–1945), the Japanese authorities imprisoned the European missionary priests. Peter undertook the systematic underground Catholic ministry — continuing the Sunday services, baptisms, and catechesis at Rakunai in the absence of the priests.
In 1943, the Japanese authorities decreed the restoration of polygamy in New Britain — the attempt to undermine the Catholic marriage tradition. Peter publicly denounced the polygamy decree and counseled his Tolai catechumens against the polygamy.
Arrested by the Japanese authorities and imprisoned at Vunaiara concentration camp, Peter was executed by the Japanese authorities on July 7, 1945 — by lethal injection.
Beatified January 17, 1995 by Pope St. John Paul II at Port Moresby.

