'My nan's photos are just gone': Londoners speak out as duplicate image replacement strips family histories from shared drives

The alert came on a Tuesday morning in May. A Peckham resident opened her Google Photos account to find that a batch of roughly 340 images — scanned prints spanning her grandmother's life in Montserrat before she emigrated to Brixton in the 1970s — had been removed. The platform's automated deduplication system had flagged them as copies of files she had uploaded twice during a backup, then quietly deleted what it assessed as the redundant versions. One set survived. The originals, which her family had borrowed from relatives and scanned over a weekend at Lambeth Archives on Minet Road, were no longer available to return.

The story is not unique. Across London, from Walthamstow to Wood Green, residents say automated duplicate-image replacement — a feature built into cloud storage and photo management software to reduce file bloat — is silently erasing photographs that carry no commercial value to a platform but carry enormous personal weight to a family. The issue has sharpened in 2026 as major providers have expanded AI-assisted storage optimisation tools, often enabled by default on free-tier accounts, and as households increasingly rely on a single cloud service as their sole archive.

What the tools do — and what they miss

Deduplication software works by comparing file hashes or visual similarity scores. When two images are assessed as identical or near-identical, one is removed or replaced with a pointer to the surviving file. The problem, say digital preservation specialists at organisations including the Digital Preservation Coalition — based in York but with significant London membership — is that the tools cannot distinguish between a photograph worth keeping once and a photograph that exists in two places because a family carefully made a backup. A scan of a 1968 wedding portrait held by a sister in Lewisham and a copy emailed to a cousin in Tottenham may register as duplicates. Only one survives the cull.

The Bishopsgate Institute on Bishopsgate in the City of London, which holds significant community archive collections, says it has fielded a growing number of inquiries from Londoners seeking to reconstruct lost personal photographs through public holdings. The institute does not publish annual inquiry figures, but staff there have described the pattern publicly at archiving sector events this year. The Hackney Archives, part of Hackney Council's library service on Reading Lane in Dalston, has similarly noted interest in its photographic collections from residents trying to fill gaps left by platform deletions.

Community members describe what was lost

A secondary school teacher from Tottenham described discovering in March that a shared family album — maintained jointly with relatives in Lagos and Toronto — had been reduced to 200 images from more than 800 after a storage provider applied an update that retrospectively activated deduplication on older shared folders. The originals had been photographed on film in the 1980s and 1990s. No negatives exist in the UK. The surviving 200 images were those most recently accessed, meaning the oldest material — the family's record of the 1980s — was disproportionately lost.

The practical difficulty is compounded by the way terms of service are written. A 2024 consumer review by Which? found that fewer than one in five cloud storage users could correctly identify whether their chosen platform applied automatic deduplication to shared folders. The review, published in November 2024, covered the five largest providers by UK subscriber base and found meaningful variation in how deletion was communicated — ranging from in-app notifications to no notification at all.

For now, digital archivists recommend several immediate steps. Maintain at least one offline backup on an external drive, stored separately from the device used for daily computing. Use a file-naming convention that embeds dates and descriptions, which reduces the chance of hash-match false positives. And check, explicitly, whether shared albums or folders on any platform have deduplication applied — this is typically buried under storage or privacy settings rather than featured prominently.

The London Metropolitan Archives on Northampton Road in Clerkenwell offers free drop-in sessions on personal and family archiving, with dates listed on the City of London Corporation website. For photographs already lost, the Archives' staff can advise on whether related collections held publicly might partially reconstruct a family's visual record — a slow process, but sometimes a successful one.