The 94-year-old deed to a Bolinas cottage asserts that the Big Mesa home cannot be leased, rented, occupied or used by “asiatics, orientals, Africans, or persons of descent from any of said races, or any persons other than of the Caucasian race.” In Seadrift, more than a dozen beach houses cannot be occupied by “any person other than a person of the Caucasian race,” according to their 1949 covenants. On Redwood Drive in Woodacre, the…