Anna Green (2004) reads Portelli's oral-history case material through Halbwachs's collective-memory vocabulary as an outside analytic frame, not evidence Portelli invoked Halbwachs himself

Historian Anna Green, in a peer-reviewed 2004 Oral History article surveying "Memory and Society," analyzes Alessandro Portelli's account of the Battle of Poggio Bustone (from The Battle of Valle Giulia, 1997) using Halbwachs's own terms: she states the partisan group Portelli describes fits Halbwachs's "definition of the memory of a social group in continuing contact." Green does not claim, and cites no evidence, that Portelli himself worked from Halbwachs — the framing is her own comparative move, laid over Portelli's material after the fact. Green's broader argument treats oral history's "interpretive mode" (Portelli, Luisa Passerini, Ronald Grele, the Popular Memory Group) and Halbwachs-descended collective-memory studies as two separate scholarly currents that are converging, rather than one directly generating the other. The dating is worth keeping straight: Green puts oral history's own turn into the interpretive mode in the late 1970s ("If one had to pick a key moment for oral history, it would surely be the late 1970s"), but the convergence itself she places in her own present — collective memory is what "over the past decade cultural historians have focussed upon," and her conclusion reads "Contemporary oral history interpretive approaches are converging with the theoretical direction of cultural theorists writing on collective memory." A footnote sharpens how separate the currents were: the references of Kansteiner's 2002 review of collective-memory studies, she observes, "while reflecting an otherwise admirable breadth of research, contain not one significant contemporary text by an oral historian" (n. 14).

This is currently the only source in the vault connecting Portelli's case material to Halbwachs's specific vocabulary, and it is external analysis, not self-citation — see claim-portelli-1979-essay-cites-no-halbwachs for the companion finding that Portelli's own foundational essay cites no Halbwachs anywhere in its endnotes. Both feed question-verify-halbwachs-direct-lineage-into-portelli, the open thread routed from claim-halbwachs-collective-memory-is-shared-ancestor-of-interpretive-forgetting.