The Koch Brothers Are Sitting on a Real Estate Empire Worth Hundreds of Millions - WSJ
Julia Koch buys historic Hamptons home listed for $75 million
As Supply of Cape Cod Mansions Shrinks, Prices Soar
How to Live Like a Koch Brother for Only $80 Million | Vanity Fair
$5 million to Chapman University from billionaire Charles Koch sparks an uproar – Orange County Register
Carl Koch (architect) - Wikipedia
In Wichita, Koch Influence Is Revered and Reviled - The New York Times
Meet Bill Koch, the other Koch brother (w/video)
Charles Koch's house in Palm Desert, CA (Google Maps)
Fred Koch Is The Oldest Of The Four Koch Brothers – He Spent His Life Avoiding Family Business And Politics Is Dead At 86 | Celebrity Net Worth
Charles Koch's House in Aspen, CO (#4) - Virtual Globetrotting
The “Other” Koch Brother | Vanity Fair
David Koch's Real Estate in NYC, the Hamptons, Aspen, and Palm Beach
Ex-Wife of Billionaire Bill Koch Sells West Palm Beach Home
The Koch Brothers Are Sitting on a Real Estate Empire Worth Hundreds of Millions - WSJ
Ex-Wife of Billionaire Bill Koch Sells West Palm Beach Home
One Koch Brother Forces the Other Out of the Family Business | The New Yorker
Take a Look at Bill Koch's $100 Million Aspen Compound - Mountain Living
The Koch Brothers Are Sitting on a Real Estate Empire Worth Hundreds of Millions - Mansion Global
Inside the Koch Brothers' Secret Summit of Billionaires | BillMoyers.com
David Koch's Many Homes
Billionaire Charles Koch Buys $5.25 Million Property in LA - Haute Residence by Haute Living
Billionaire Charles Koch Buys $5.25 Million Property in LA - Haute Residence by Haute Living
David Koch's Real Estate in NYC, the Hamptons, Aspen, and Palm Beach
Charles Koch's House in Wichita, KS (Google Maps) (#2)
