Carson Mansion is a Queen Anne mansion in Eureka, California, and a filming location for The Valley of the Giants (1919). Built in 1886, it was designed by Samuel Newsom and Joseph Cather Newsom (Newsom and Newsom). It is owned by Ingomar Club.
Location: 143 M Street, Eureka, California, United States
Verified facts
- Located in Old Town, Eureka, California
confidence 90/100 · 4 independent sources · SRC-0179, SRC-0180, SRC-0181, SRC-0437 - Designed by Samuel Newsom and Joseph Cather Newsom (Newsom and Newsom)
confidence 85/100 · 3 independent sources · SRC-0182, SRC-0180, SRC-0181 - Built in 1886
confidence 70/100 · 3 independent sources · SRC-0181, SRC-0183, SRC-2960 - Architectural style: Queen Anne
confidence 95/100 · 6 independent sources · SRC-0179, SRC-0180, SRC-2961, SRC-5321, SRC-5322, SRC-9251 - Historic designation: Historic American Buildings Survey (HABS CA-1911), May 1964
confidence 75/100 · 3 independent sources · SRC-0179, SRC-0184, SRC-0180 - Appeared in The Valley of the Giants (movie, 1919)
confidence 85/100 · 3 independent sources · SRC-9352, SRC-9353, SRC-9979
Ownership history
Current owner — Ingomar Club (since 1950)
confidence 90/100 · SRC-0182, SRC-0179, SRC-2962, SRC-0181, SRC-0183
Previous owners
- William Carson (1886–1912)
confidence 90/100 · SRC-0179, SRC-0181, SRC-2962, SRC-5984, SRC-0183, SRC-0184
Evidence & sources
- SRC-0179 — Carson Mansion – Wikipedia (Tier 3, encyclopedia; retrieved June 2026)
- SRC-0180 — Eureka Heritage Society – Architectural Legacy (Legacy8) (Tier 2, scholarship; retrieved June 2026)
- SRC-0181 — Historic Structures – Carson House, Eureka California (Tier 2, scholarship; retrieved June 2026)
- SRC-0182 — Ingomar Club – Mansion History (official operator) (Tier 1, owner_statement; retrieved June 2026)
- SRC-0183 — NoeHill – Carson Mansion, Eureka (Tier 2, journalism; retrieved June 2026)
- SRC-0184 — Library of Congress – Carson House HABS CA-1911 (Tier 1, official_archive; retrieved June 2026)
- SRC-0437 — Library of Congress — Carol M. Highsmith Archive, catalog record for the Carson Mansion (item 2013634798) (Tier 1, official_archive; retrieved June 2026)
- SRC-2960 — Clio – Carson Mansion (Tier 2, reference; retrieved June 2026)
- SRC-2961 — North Coast Journal – William Carson and his Mansion (Tier 2, journalism; retrieved June 2026)
- SRC-2962 — Visit Redwoods (Humboldt County Visitors Bureau) – Carson Mansion (Tier 2, official_site; retrieved June 2026)
- SRC-4671 — Ingomar Club (operator of the Carson Mansion) (Tier 1, owner_organization; retrieved June 2026)
- SRC-4672 — International Associate Clubs (IAC Worldwide) (Tier 2, directory; retrieved June 2026)
- SRC-5321 — Historical Homes of America (Tier 3, blog; retrieved June 2026)
- SRC-5322 — The Vintage News (Tier 3, press; retrieved June 2026)
- SRC-5984 — William Carson — Humboldt County Historical Society (Tier 2, historical_society; retrieved June 2026)
- SRC-9251 — The Carson Mansion is a large Victorian house located in Old Town, Eureka, California – Library of Congress (Carol M. Highsmith Archive) (Tier 1, official_archive; retrieved June 2026)
- SRC-9352 — www.northcoastjournal.com (Tier 2, journalism; retrieved June 2026)
- SRC-9353 — www.redwoodnews.tv (Tier 2, journalism; retrieved June 2026)
- SRC-9979 — hdnfc.org (Tier 1, official_archive; retrieved June 2026)
How we verify
Every fact above is independently corroborated by at least two reputable sources and
confidence-scored before publication. Claims that cannot clear that bar are withheld. We show the
street address only for non-residential public landmarks (museums, commercial and civic buildings,
publicly documented filming-location sites); the exact addresses of private residences and any
personal information are structurally barred from publication. Last reviewed June 2026.
Plan Your Visit
Privately owned — not open to the public. Privately owned and occupied by the Ingomar Club (a private social club) since 1950. House and grounds are NOT open to the public; exterior viewing only from the street. No public tours or admission.
Frequently asked questions
Where was The Valley of the Giants filmed?
Carson Mansion, in Eureka, California, is a real-world filming location used for The Valley of the Giants.
Can you visit Carson Mansion?
Carson Mansion is a private residence and is not open to the public. Please respect the owners' privacy and do not trespass.
Who designed Carson Mansion?
Carson Mansion was designed by Samuel Newsom and Joseph Cather Newsom (Newsom and Newsom).
Where is Carson Mansion located?
Carson Mansion is located in Eureka, California.