Grey Towers National Historic Site — built in 1886 [FACT-2093].
Location: Milford Township, Milford, Pennsylvania, United States
Verified facts
- Built in 1886
confidence 70/100 · 2 independent sources · SRC-1955, SRC-1958
Evidence & sources
- SRC-1955 — USDA Forest Service — Grey Towers National Historic Site, About the Site (Tier 1, official_archive; retrieved June 2026)
- SRC-1958 — Grey Towers Heritage Association — Grey Towers (Tier 2, institutional_page; 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.