Henry Clay Frick and His Mark on Pittsburgh - Positively Pittsburgh
Descendants of Henry Clay Frick warring over museum renovation
The First Rich List
Henry Clay Frick: Blood Pact - Pittsburgh Quarterly
Histories & Mysteries: The Name Game — O'Hara, Schenley and Frick stand out for regional importance, generosity
Henry Clay Frick | The Frick Collection
Henry Clay Frick: "The Man" was a Businessman
Henry Clay Frick (1849-1919) | American Experience | Official Site | PBS
On the shooting of Henry Clay Frick | MACHORKA
HENRY CLAY FRICK | Kirkus Reviews
Henry Clay Frick - Wikipedia
Henry Clay Frick at the Frick Estate | Jazzersten's HDR Blog
Helen Clay Frick - University of Pittsburgh Press
Henry Clay Frick's Library | Art Documentation: Journal of the Art Libraries Society of North America: Vol 39, No 2
American Robber Barons Business Powerhouses
The incredible lives of the real Gilded Age billionaires | lovemoney.com
The Frick Collection, New York City - Museums | Arthive
NYC's Frick Collection is Mansion Turned Art Museum - Reverberations
Henry Clay Frick
The First Rich List
How the number of billionaires has changed over the past century | lovemoney.com
Henry Clay Frick (1848-1919) - Johnstown Flood National Memorial (U.S. National Park Service)
The incredible lives of the real Gilded Age billionaires | lovemoney.com
Henry Clay Frick - Wikipedia
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From Rockefeller to Ford, See Forbes' 1918 Ranking Of The Richest People In America
