Robert R. Blacker House — a verified famous property.
Location: Oak Knoll, Pasadena, California, United States
Verified facts
- Built in 1907
confidence 85/100 · 3 independent sources · SRC-0083, SRC-0082, SRC-0422 - Architectural style: Arts and Crafts (American Craftsman) ultimate bungalow with Japanese influences
confidence 85/100 · 3 independent sources · SRC-0083, SRC-0082, SRC-0422
Evidence & sources
- SRC-0082 — PCAD (Pacific Coast Architecture Database), University of Washington (Tier 2, scholarship; retrieved June 2026)
- SRC-0083 — Sotheby's (Tier 2, journalism; retrieved June 2026)
- SRC-0422 — NPS — National Register of Historic Places Inventory-Nomination Form (Robert R. Blacker House) (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 publish
location only at neighborhood/city granularity — exact street addresses and personal information
are structurally barred from publication. Last reviewed June 2026.