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 recorded source groups · SRC-0179, SRC-0180, SRC-0181, SRC-0437 - Designed by Samuel Newsom and Joseph Cather Newsom (Newsom and Newsom)
confidence 85/100 · 3 recorded source groups · SRC-0182, SRC-0180, SRC-0181 - Built in 1886
confidence 70/100 · 3 recorded source groups · SRC-0181, SRC-0183, SRC-2960 - Architectural style: Queen Anne
confidence 95/100 · 6 recorded source groups · 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 recorded source groups · SRC-0179, SRC-0184, SRC-0180 - Appeared in The Valley of the Giants (movie, 1919)
confidence 85/100 · 3 recorded source groups · 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
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-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
The entries above show the sources and confidence scores recorded in our fact ledger.
Source tiers are internal classifications, not guarantees of accuracy or independence.
Several sources may repeat the same underlying account; a source count alone does not establish independent corroboration. 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
How is Carson Mansion connected to The Valley of the Giants?
Carson Mansion, in Eureka, California, has a documented connection to The Valley of the Giants. Read the sourced facts on this page for the type of connection.
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.