After the seizures in late 1942 of five U.S. enterprises he managed on behalf of Nazi industrialist Fritz Thyssen, Prescott Bush, the grandfather of President George W. Bush, failed to divest himself of more than a dozen "enemy national" relationships that continued until as late as 1951, newly-discovered U.S. government documents reveal.

Furthermore, the records show that Bush and his colleagues routinely attempted to conceal their activities from government investigators.

Bush's partners in the secret web of Thyssen-controlled ventures included former New York Governor W. Averell Harriman and his younger brother, E. Roland Harriman. Their quarter-century of Nazi financial transactions, from 1924-1951, were conducted by the New York private banking firm, Brown Brothers Harriman.

The White House did not return phone calls seeking comment.

Although the additional seizures under the Trading with the Enemy Act did not take place until after the war, documents from The National Archives and Library of Congress confirm that Bush and his partners continued their Nazi dealings unabated.