Well, this is a puzzling one.The Isabel Yorba in question can only be the daughter of Jose Antonio Yorba and Maria Josefa Grijalva.The 1870 Federal census lists this Isabel as aged 82.Her actual birthdate I have is November 19, 1789.The 1870 census also lists a Nicolasa Yorba, aged 23; Isabel, aged 14; and Rosalia, aged 10.
What's odd is that the elder Isabel Yorba was married to José Joaquín Maitorena (died, 1830), but it seems fairly well documented that they had no children and that Isabel adopted Refugia Lugo, who I believe was her niece or the daughter of her rancho foreman.
Right following the Yorba listing is one for Refugia Abadie, aged 26, born in California, as well as: Felicidad Abadie, aged 6, Juan Abadie, aged 4, and Rosa Abadie, aged 3.
No men listed at all in either grouping.
However, there is a Dominique Abadie, born 1832, in France, who was married to Maria Lugo (b. 31 May 1843 in Santa Barbara, d. 26 Mar 1926 in Santa Barbara).Their children are listed as: Domingo Abadie John S. Abadie and Felicidad Elenora Abadie (b. 3 Jul 1864, Santa Barbara; d. 6 Jun 1934, Los Angeles) who was married to Alexander Francis Harmer.They had eight children.