 They were "alcades" of the mission at the time of their deaths in 1807, while part of a Spanish posse during a skirmish with the Suisunes tribe.In 1776 the Spanish established a Mission and Presidio at nearby San Francisco, and baptismal records identify many Ohlone people from Pruristac emigrated to Mission Dolores.In 1786, the Mission established a "asistencia", an outpost known as "San Pedro y San Pablo Asistencia", at the site for the purpose of Missionary work and farming in support of the Mission.