Maria Petra Izaguirre was born circa 1746, the daughter of Juan Pantaleon Izaguirre and Maria Antonia Ramirez.
She married Joaquin Garcia.
Guadalupe Garcia married Francisco Ramos.
Gertrudis Garcia married _ Barrera, Matias Garcia.
Petronila Garcia married Clemente Garcia.
Albino Garcia married Apolinaria Salinas.
In 1782, she lived in Mier. The church census recorded that she was married, española, and 21 years old. Her household included 6 people:
Joaquin Garcia, español, married, age 55. He owned Rancho El Paso de los Arrieros but did not live there.
Maria Petra Izaguirre, española, married, age 21.
Jose Vicente Garcia, español, single, age 23.
Maria Lugarda Garcia, española, an unmarried girl, age 20.
Marcelino (Mariano) Garcia, español, a child, age 11.
Maria Agustina Garcia, española, a child, age 9.