Scholarship on written Holocaust accounts deals extensively with problems of witnessing, but primarily assumes that the writer is a survivor. As a result, attention focuses on the process of survivors reflecting on their experiences in autobiography. Yet autobiography relating to the Holocaust has also been written by nonsurvivors. In Lost: A Search for Six of Six Million (2006), Daniel Mendelsohn adapts the genre of written survivor accounts and incorporates it into his own autobiography. Both an autobiography about himself and his relationship to his family, as well as a memoir about his six lost relatives, Lost explores whether or not someone who was not there to witness can nevertheless function as a witness. immense scholarship on written Holocaust survivor accounts, viewed in relation to autobiography,1 demonstrates the rise of a new type in the context of Holocaust Studies: postmemorial autobiography.2 With this term, I draw on Marianne Hirsch's concept of and relate it to autobiography.As a nonwitness nonetheless affected by the Holocaust, Mendelsohn retains the of postmemory.3 Post does not signify a movement beyond memory, but signifies instead that those who came after, for example, the second generation, cannot possess the memories themselves, only the traumatic aftereffects. Hirsch ties her concept of postmemory to photography, arguing photographs mediate familial memory and postmemory.4 Photographs, in their capturing of an image in the past which endures into the present, function as a medium in which presence and absence, memory and postmemory come prominently to the fore.In his description of the genre, autobiography theorist Georges Gusdorf employs diction that immediately raises the issue of witnessing: The narrative [of the autobiography] offers us the testimony of a man about himself, the contest of a being in dialogue with itself, seeking its innermost fidelity.5 Earlier in the essay, Gusdorf describes the autobiographer as a of himself [who] wishes to produce his own portrait, who gives himself the job of narrating his own history.6 Along with the term historian, Gusdorf also uses witness: The witness of each person about himself is in addition a privileged one.7 According to Gusdorf, the autobiographer acts as both historian and witness and his autobiography is his testimony; he possesses a privileged position of spectatorship in reference to himself. scholarship on written Holocaust survivor accounts provides a conceptual framework that must be adapted to allow for written Holocaust accounts by nonsurvivors, as exemplified by Lost.Sidonie Smith and Julia Watson identify witness narratives as one of the cases that complicates autobiography: Autobiographical theory . . . raises questions about narratives of witness, about who is authorized to tell stories, why, and when, of what kinds, and to what ends.8 Written survivor accounts of the Holocaust bear witness to the victims of the Holocaust while at the same time providing a narrative of the survivor's experience during the Holocaust. In other words, witness narratives, and thus, written survivor autobiographies, carry out a double function. Mendelsohn's autobiography becomes a witness narrative: in tracing the story of Shmiel Jager and his family, Lost bears witness to a fraction of the victims of the Holocaust, while simultaneously narrating Mendelsohn's own experience in uncovering their story. Mendelsohn is not a witness to the events of the Holocaust themselves, but is a witness to the structure of postmemory and the way in which postmemory affects his own life.This article examines the narrative strategies, more specifically, the interplay between text and image, or between narrative and photography, that Mendelsohn employs throughout his autobiography.9 Mendelsohn grew up knowing only that his great-uncle, Shmiel Jager, along with his wife and four daughters, had been killed by the Nazis. …