'My grandmother's face, just gone': Londoners speak out as duplicate image replacement strips family memories from community archives

Dozens of Londoners have come forward in recent weeks to report that photographs of their relatives have been removed or replaced with duplicate images in community archive databases managed by borough councils and heritage trusts, leaving families cut off from irreplaceable visual records. The complaints span at least seven boroughs and centre on a digitisation programme that began rolling out across Greater London in 2023.

The issue carries particular weight right now. Several London councils accelerated digitisation drives after a cross-party push in 2024 to move physical community archives online before lease renewals on storage facilities expired. The race to get material uploaded — and the use of automated deduplication software to trim file sizes — appears to have misfired, matching distinct photographs as duplicates and deleting one version. For families who donated originals, there is no fallback copy.

What residents are actually losing

At the Hackney Archives on Reading Lane, staff confirmed they have received a cluster of complaints tied to the borough's Migration Stories digitisation project, which catalogued donated photographs from Caribbean and West African communities settled in Hackney since the 1950s. Members of the Hackney Caribbean Heritage Group, which collaborated on the project, say some families received notification that their images had been processed — only to find the specific photographs untraceable when they tried to view them online.

Hammersmith and Fulham's local studies collection at Shepherd's Bush Library has seen similar reports involving photographs donated to its Fulham Memories programme. One woman, a retired teacher who donated 34 photographs of her Jamaican-born parents taken in Fulham during the 1960s, described arriving to view the collection and finding seven images listed as duplicates and removed from the publicly accessible catalogue. She did not wish to be named, but her frustration was shared by others gathered at a meeting of the West London Community History Forum in Shepherd's Bush last month.

Community members at that forum described a consistent pattern: an automated flag, a deletion with no human review, and a form letter from the managing authority offering to investigate. Several said weeks had passed with no resolution. One man, whose father's photograph taken outside Brixton Market on Atlantic Road in 1971 had been merged with an unrelated image in the Lambeth Archives system, said he had written three times without receiving a substantive response.

The technology and the gap in oversight

Deduplication software works by generating a hash — essentially a numerical fingerprint — for each image file. When two files produce the same or closely similar hash, the system flags them as identical and can automatically remove one. The problem, archivists and technology specialists say, is that scanned photographs of physical prints often produce near-identical hash values even when the underlying images are meaningfully different, particularly where lighting conditions during scanning were consistent across a batch.

The London Metropolitan Archives, based at Northampton Road in Clerkenwell, operates under a separate digitisation protocol that mandates human review before any automated deletion. That protocol, updated in January 2025, was not adopted uniformly across all borough-level programmes. The result is an inconsistency in how donated material is handled depending on which postcode a family happened to live in.

The Greater London Authority has not issued a formal response to the complaints. The Chartered Institute of Library and Information Professionals published guidance in March 2025 warning that deduplication errors in community collections posed a specific risk to minoritised groups, whose historical photographic records are already underrepresented in public collections.

For families affected, the practical steps are limited but real. Any resident who donated photographs to a borough archive programme should request in writing — via recorded delivery if necessary — a full inventory of every item logged under their submission reference. Borough archives are required under the Public Records Act to maintain provenance records. If a photograph cannot be located, families should ask specifically whether deduplication software was applied to their batch and request the original hash logs. The Hackney Archives confirmed this week that it is reviewing its deduplication process and expects to publish an updated policy before the end of September 2026.