Ruiz built a small adobe house on the land known as Rancho de Los Peñasquitos. A few years later, Rancho de Los Peñasquitos was the first place of respite for General Stephan Watts Kearny and his Army of the West after the Battle of San Pasqual.

: https://www.sandiego.gov/citycouncil/cd5/communities/ranchopeasquitos