Has anyone come across this family in research

Jose Desiderio Velasco born c 1820

Maria Ana Montenegro b 1826

their son Martiniano Velasco b. 1847

The 1870 census for Santa Cruz County, California shows there birthplace as
Guadalajara. They came to California in 1855, where nine more children were
born.

Jose and Maria ( or Mariana) were thought to have returned to Mexico before
1900.

Eric Robledo Edgar