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Historic Site · Pasadena
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Arthur Amos Noyes’s Pasadena

The physical chemist who helped build research-first Caltech lived on San Pasqual Street, though parcel continuity needs proof.
Context-only story
Private residence or private residential area. The public point is deliberately coarse; do not route to, approach, or photograph a home.
The location shown is deliberately coarse or withheld. It must not be used to identify a private property.
Directions unavailable
STATUS
Status unknown
ACCESS
No public access
PUBLIC LOCATION
San Pasqual Street area (approximate)
MAP PRECISION
Approximate area
EVIDENCE
Good working evidence
CHECKED
Aug 22, 2026
THE NERD PAYOFF

Why This Pin Earned Its Place

Noyes’s residence adds the quiet institution-builder to the Hale–Noyes–Millikan triangle and makes uncertainty about renumbering visible instead of burying it.
01
Documented 1924–1936 residence
02
Probable successor parcel
03
Caltech “Big Three” connection
PEOPLE AND IDEAS HERE

The Human Network Behind the Address

The historical address geocodes to a present institutional parcel with a 1923 landmark building, but renumbering or parcel consolidation is not conclusively proved.
Arthur Amos Noyes
1866–1936
resident · 1924–1936
Caltech catalogs place Noyes at the address through his death year.
Interaction circle
• Noyes, Hale, and Robert Millikan reshaped Throop into Caltech.
• Gates and Noyes laboratories provide a public institutional alternative.
LOOK CLOSER

The Gloriously Specific Details

Location history
• The historical address geocodes to a present institutional parcel with a 1923 landmark building, but renumbering or parcel consolidation is not conclusively proved.
Interaction circle
• Noyes, Hale, and Robert Millikan reshaped Throop into Caltech.
• Gates and Noyes laboratories provide a public institutional alternative.
Map disclosure
• The marker is a coarse area point, not the residence or parcel.
CONFIRMED · HISTORICAL ASSOCIATION
The historical address geocodes to a present institutional parcel with a 1923 landmark building, but renumbering or parcel consolidation is not conclusively proved.
INTERPRETATION · IDEA NETWORK
Noyes’s residence adds the quiet institution-builder to the Hale–Noyes–Millikan triangle and makes uncertainty about renumbering visible instead of burying it.
UNDERSTAND THE PLACE

Context Without a Doorstep

Public location
San Pasqual Street area (approximate)
Hours
Not applicable to a context-only record. A related public institution may have its own event schedule.
Access
Private residence or private residential area. The public point is deliberately coarse; do not route to, approach, or photograph a home.
Map disclosure
The marker identifies a general area, not a house or parcel.
Photography
Do not photograph residents, windows, or private property, and do not linger.
Read the primary research source ↗
ACCESSIBILITY
Details need a check
Unknown, and not assessed as a visitor destination because public access is unavailable or the site is sensitive.
ACCESS & SAFETY
Specific, not sensational
No trespass, doorstep visits, address hunting, or attempts to refine the approximate marker. Learn from the public story instead.
TRUST & SOURCES
usable
Every visible claim is connected to a source and review date. Unknown never silently means no.
Caltech 1924 catalog ↗
Checked Aug 22, 2026
Caltech Magazine — the quiet man behind Noyes Laboratory ↗
Checked Aug 22, 2026
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