Abstract Titles of Rancho Topango Malibu , undated

The Tom and Toni Doyle Research Collection on Malibu History contains legal records, publications, maps, and archival materials documenting the land ownership and historical development of Malibu and Southern California from early Spanish exploration through the 20th century. The collection primarily reflects the Doyles' extensive research into the complex land-use history and lineage of Rancho Malibu, as well as their work on local landmarks such as the Malibu Pier, Serra Retreat, and the Adamson House.

The materials include extensive chains of title, wills, deeds, and legal transcripts associated with Rancho Malibu's early owners, including José Bartolomé Tapia and Matthew Keller. Additionally, the collection features historical publications and clippings—such as WWII-era issues of the Malibu Bugle—alongside regional maps, correspondence, brochures, and research notes covering early maritime explorers and local indigenous history.