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Qian Xuesen’s Altadena

Qian Xuesen’s Altadena years sit at the center of a rocket network that reshaped both American and Chinese aerospace.
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
Buena Loma Court area (approximate)
MAP PRECISION
Approximate area
EVIDENCE
Good working evidence
CHECKED
Aug 22, 2026
THE NERD PAYOFF

Why This Pin Earned Its Place

The node joins GALCIT/JPL collaboration to detention, geopolitics, and Qian’s later foundational role in China’s aerospace program.
01
Documented 1946–1952 residence
02
Original parcel unresolved
03
GALCIT and JPL rocket network
PEOPLE AND IDEAS HERE

The Human Network Behind the Address

Today two parcels share the historical street number, so the original house cannot yet be distinguished; only a neighborhood point is public.
Qian Xuesen
1911–2009
resident · Documented 1946–1952
Caltech directories place the Qian family at the Altadena address.
Interaction circle
• Qian worked with Theodore von Kármán, Frank Malina, Martin Summerfield, Jack Parsons, Ed Forman, and Frank Marble.
• The Qian family stayed with the Marbles immediately before leaving the United States in 1955.
LOOK CLOSER

The Gloriously Specific Details

Location history
• Today two parcels share the historical street number, so the original house cannot yet be distinguished; only a neighborhood point is public.
Interaction circle
• Qian worked with Theodore von Kármán, Frank Malina, Martin Summerfield, Jack Parsons, Ed Forman, and Frank Marble.
• The Qian family stayed with the Marbles immediately before leaving the United States in 1955.
Map disclosure
• The marker is a coarse area point, not the residence or parcel.
CONFIRMED · HISTORICAL ASSOCIATION
Today two parcels share the historical street number, so the original house cannot yet be distinguished; only a neighborhood point is public.
INTERPRETATION · IDEA NETWORK
The node joins GALCIT/JPL collaboration to detention, geopolitics, and Qian’s later foundational role in China’s aerospace program.
UNDERSTAND THE PLACE

Context Without a Doorstep

Public location
Buena Loma Court 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 1949–50 directory ↗
Checked Aug 22, 2026
Caltech — Tsien Revisited ↗
Checked Aug 22, 2026
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