Lucas Valley
human settlement in California, United States of America
Lucas Valley is a valley in Marin County, California, drained to the east into San Pablo Bay by Miller Creek, as well as an unincorporated community in the valley, which forms part of the Lucas Valley-Marinwood CDP.
Lucas Valley Road traverses the length of the valley, linking it to Gallinas Valley to the east and Nicasio Valley to the west. According to the United States Geological Survey, the suburban developments along Miller Creek (including the Lucas Valley-Marinwood CDP) are actually in Gallinas Valley.
History
Lucas Valley was part of the Rancho San Pedro, Santa Margarita y Las Gallinas grant, a parcel of 21,678.69 acres (8,773.05 ha) awarded to Timothy (Don Timoteo) Murphy on February 14, 1844. John Lucas inherited the Santa Margarita rancho (which included Lucas Valley) in 1853.
In 1978, film director George Lucas began acquiring land in the area for his Skywalker Ranch. However, Lucas Valley Road was named after the 19th-century rancher, who is not related to George Lucas.
“Lucas Valley” enters the record as human settlement in California, United States of America. Crown Archives preserves that source wording while asking what Lucas, Valley and human can confirm, complicate or overturn.
Why this record matters
“Lucas Valley” is worth following because a concise public description often conceals a longer documentary argument. Here, Lucas, Valley and human provides the most credible route into that argument.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 5, 2026. The linked authority identifier is Q14683217. Authority coordinates are 38.056, -122.659. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1844, 1853 and 1978.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Lucas Valley”, its source revision and the description used here.
- Expand the search: follow Lucas Valley primary sources, Lucas Valley archive and Lucas research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Lucas Valley”?
- Which cited source is closest to the event, object or claim?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Lucas Valley” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.