Claus Spreckels: Acquired a virtual monopoly on sugar in the Hawaiian Islands after the government passed a law making Hawaiian sugar duty-free.

Adolph Bernard Spreckels: Son of Claus, gifted Golden Gate Park with Spreckels Lake and the Spreckels Music Concourse.

Alma De Bretteville Spreckels: Together with husband Adolph, spearheaded the fundraising effort and construction of the California Palace of Legion of Honor.

Dodie Rosekrans: International society hostess, haute couture collector, and fine arts supporter.