A former US Army reporter donated transcripts of radio coverage of the Nuremberg trials to the US Holocaust Memorial Museum.

Harold Burson, 92, who covered the trials of Nazi leaders in 1945 and 1946 for the American Forces Network, gave the never-published transcript to the Washington museum on Tuesday. The audio recordings of the broadcast have been lost.

During the trials, Burson wrote extensive scripts for on-air announcers, who broadcast to both US soldiers in Europe and the English-speaking population in Germany. “To me, [the trial] was exhilarating because these were arguably the best news people in the world,” Burson told The Associated Press of reporting alongside the likes of Walter Cronkite and Howard K. Smith.

Burson delivered 40 such scripts to the museum in person after taking a train from New York to Washington, AP reported.

It is the first detailed transcript of coverage of the trials to become part of the museum collection, the museum’s director of curatorial affairs, Scott Miller, told AP. Burson also gave an oral history of the trials of 22 Nazi leaders to the museum.

“This is an incredible eyewitness primary source of history,” Miller told Fox News. “He was witnessing the testimony of Nazi criminals, the captured German photos, the captured German film footage, the captured German documents that were shown at Nuremberg, shown to the world for the first time. He witnessed them become the evidence of the Holocaust.”