(In the late 1990s Judge Feinberg corresponded with and was interviewed by Jeffrey Handelman, who was preparing a (never-published) biography of Feinberg's former colleague Judge Henry Friendly. In the late 2000s Judge Feinberg again participated with a different biographer, David Dorsen, whose book on Friendly was published in 2012. This file includes interview transcripts from each period, as well as correspondence regarding Friendly and the biographies.)