Kira Greene

Special Consignments & Press Relations


Zachary Diaz


A scholar of American political history and popular culture, Zachary Diaz curated the auctions of the estates of Ruth Bader Ginsburg and Colin Powell for the Potomack Company. A native of California, he moved to Washington, D.C., to pursue these interests. Zachary earned a BA degree from the University of California, Los Angeles, and is a candidate for a graduate degree from the George Washington University.


Justice Ruth Bader Ginsburg

Benefitting the Washington National Opera at the Kennedy Center


General Colin Powell

Benefitting America's Promise Alliance and the Colin Powell School at the City College of New York

Chef Roland Mesnier

Collection of Dessert Molds from White House Pastry Chef serving five U.S. Presidents over 25 years

Tom Clancy

The estate of the best-selling novelist, Tom Clancy author of The Hunt for Red October and Patriot Games


Daniel Boorstin

The collection of historical documents and decorative arts objects of former Librarian of Congress and Pulitzer Prize-winning author Daniel Boorstin