The International Committee of the Fourth International has catalogued all the evidence researched since the investigation into ‘Security and the Fourth International’ began in May 1975. It includes:

Testimony

• Sworn affidavit of Louis Budenz, former managing editor of the American Communist Party’s Daily Worker, presented to the House Un-American Activities Committee on November 11, 1950. Library of Congress.

• Sworn testimony of Mark Zborowski before the US Senate Judiciary Committee on February 29, and March 2, 1956.

• Sworn testimony of Mrs. David Dallin, Lola Estrine, before the US Senate Judiciary Committee on March 2, 1956.

• Sworn testimony by Thomas L. Black, undercover Stalinist agent inside the Socialist Workers Party, to the US Senate Judiciary Committee on May 17, 1956.

• Sworn testimony of General Alexander Orlov, the NKVD defector, before the US Senate Judiciary Committee’s “executive session” on September 28, 1955, and public session on February 14, 1957.

Court Evidence

• Sworn evidence of Soviet master spy Jack Soble at the perjury trial of Mark Zborowski in New York in 1958.

• Sworn evidence of Mark Zborowski in his own perjury trial in 1958 and his retrial in 1963.

• Sworn evidence of Jean Van Heijenoort, Trotsky’s secretary, at Mark Zborowski’s perjury trial in 1958.

• Sworn evidence of Jack Soble at his brother’s espionage trial in New York in 1961.

• Sworn evidence of Floyd Cleveland Miller, Stalinist undercover agent in the Socialist Workers Party, at the trial of Dr. Robert Soblen in New York in 1961.

• US attorney’s legal brief drawn up for Dr. Robert Soblen’s appeal. It identifies the conspirators in the Soblen spy ring and names Sylvia Callen, real name Sylvia Franklin, party name Sylvia Caldwell.

Official archives

• Reports written by US Consul Robert G. McGregor in Mexico in 1940 and filed with the US State Department in Washington. US National Archives.

• Documents from the Trotsky archives at Harvard University used by historian Isaac Deutscher in his biography of Trotsky.

Interviews

• Tape recorded interviews with Trotsky’s ex-secretary Jean Van Heijenoort carried out by the International Committee on October 10, 1975.

• Tape recorded interview with Grace Carlson, former member of the Socialist Workers Party’s national committee carried out by the International Committee on October 13, 1975.

The catalogue also contains articles from the SWP’s Militant on the Carlo Tresca assassinations, Mark Zborowski and the defection of Tim Wohlforth and Nancy Fields from the Workers League in 1974.

There are the books of Georges Vereeken, The GPU in the Trotskyist Movement (New Park Publications $6.95), Murder in Mexico by General Salvador Sanchez and co-edited by Julian Gorkin; Mind of an Assassin by Isaac Don Levine and Trotsky’s Lawyer by Gerard Rosenthal.

There is a full set of correspondence between the International Committee and Joseph Hansen during 1975 regarding Security and the Fourth International and the IC’s call for an international commission of inquiry.

The correspondence includes letters exchanged between Comrade Gerry Healy of the British section of the International Committee and Hansen in March 1976.