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Carl Anderson Residence

San Marino’s own survey identifies the surviving home of the physicist who discovered the positron.
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
Active
ACCESS
No public access
PUBLIC LOCATION
Lorain Road area (approximate)
MAP PRECISION
Approximate area
EVIDENCE
Good working evidence
CHECKED
Aug 22, 2026
THE NERD PAYOFF

Why This Pin Earned Its Place

The residence connects cosmic-ray instrumentation, antimatter’s experimental discovery, Robert Millikan’s laboratory, and later Caltech leadership.
01
Survey-identified Anderson Residence
02
1946 house survives
03
Positron discovery context
PEOPLE AND IDEAS HERE

The Human Network Behind the Address

The 1946 house survives as a private residence and is explicitly identified as historically significant in San Marino’s survey.
Carl D. Anderson
1905–1991
resident · Documented 1955–1967
Anderson lived at the San Marino residence during his mature Caltech career.
Interaction circle
• Anderson trained under Robert Millikan.
• His cloud-chamber work established the positron and advanced cosmic-ray physics.
LOOK CLOSER

The Gloriously Specific Details

Location history
• The 1946 house survives as a private residence and is explicitly identified as historically significant in San Marino’s survey.
Interaction circle
• Anderson trained under Robert Millikan.
• His cloud-chamber work established the positron and advanced cosmic-ray physics.
Map disclosure
• The marker is a coarse area point, not the residence or parcel.
CONFIRMED · HISTORICAL ASSOCIATION
The 1946 house survives as a private residence and is explicitly identified as historically significant in San Marino’s survey.
INTERPRETATION · IDEA NETWORK
The residence connects cosmic-ray instrumentation, antimatter’s experimental discovery, Robert Millikan’s laboratory, and later Caltech leadership.
UNDERSTAND THE PLACE

Context Without a Doorstep

Public location
Lorain Road 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.
City of San Marino historic survey findings ↗
Checked Aug 22, 2026
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