I found information on your Felipa Dominguez, if you still need it.

Maria Northrop's "Spanish and Mexican Families of Early California" Vol. 2, page 66 shows Felipa, her parents and 13 siblings:

Father - Mariano Dominguez
born about 1786-89 in Villa de Sinaloa, Mexico
Parents Dominguez and Valdez

Married 7 Nov 1801 at San Diego Presidio to
Maria Venancia Sotelo
baptized 12 May 1789 at Mission San Diego
Parents Francisco Antonio Sotelo and Maria Josefa Gabriela Silvas
(we are related on this Silvas line, which I have back another 2 generations)

The family appears on the 1823 Los Angeles Census. Northrop wrote of Mariano: Called "Domiguito" because of his short stature. Murdered at the Pauma Massacre in December 1840, shortly after the Battle of San Pasqual in San Diego County, along with 10 other victims.

Their 4th child was your Maria Felipa
Born 16 March 1812, baptized 1 May 1812 San Diego Presidio.
Married 2 February 1830 ant Mission San Gabriel to Bernardo Fernando Antonio Yorba (another relative of mine)
Felipa died 7 Sept 1851, buried 9 Sept 1851 at Los Angeles Plaza Church Cemetery.

Good luck, and let me know if I can be of further help with the Silvas or Yorba lines.

Valerie