Portola Expedition
Garcia Ancestors who were members of the 1769 Portola Expedition
The Portolá expedition of 1769 founded presidios and missions at San Diego and Monterey and escorted Father Junipero Serra into the province. Wives and children of several soldiers began to join them beginning in 1774.
Most of these soldiers were leather-jackets, or "soldados de cuera", and were Mexican-born, including such progenitors as Pedro Antonio Amador and Jose Joaquin Cayetano Espinosa.
For the rest of the expedition:
Californio Families by Alexander V. King (SF Genealogy)