[1] Diego Pérez was a ship captain, thought to come from Salamanca—family members have been unable to trace records of his commission through the Archivo General de Indias or in Loreto, which has been ravaged by hurricanes over the centuries.

[3] When she retired, Mexican Governor José Figueroa rewarded Pérez as the grantee of the 14,402-acre (58.28 km2) Rancho del Rincón de San Pascual with her husband Juan Mariné.

[7] (According to descendants, the fathers at San Gabriel Mission made her the grant under Spanish rule; when Mexico acquired Alta California, Pérez then married Juan Mariné because Mexican law did not allow women to own land.

Perez and Sepúlveda submitted a new land claim and in 1839 were re-granted their own title to Rancho San Pascual by Mexican Governor Juan Bautista Alvarado.

It was restored by architect Carleton Winslow, Sr. in the early 20th century and is still standing on Foothill Street in South Pasadena, and is on the National Register of Historic Places.

It was named after a Californio hero, General Jose Maria Flores, the commander of the Mexican forces in Alta California during the Mexican–American War, who had camped near the adobe.

Her death certificate, located in the Santa Ana courthouse, records that she lived to be 140, but descendants for the most part agree on more conservative figures like 110 or 112 years old,[2] making her a famous centenarian of early California and of Mexican (later U.S.) history.

[1] Eulalia Pérez de Guillén Mariné is one of only two non-clergy buried with the priests in the San Gabriel Mission courtyard cemetery.