Newcastle City Library's local history collection and the Hunter Valley Research Foundation both flagged this week that duplicate and mislabelled images have reached a point where they are actively degrading the usefulness of their public-facing digital archives. The problem is not new, but the volume — compounded by two major bulk-scanning drives completed between 2022 and early 2025 — has finally forced both organisations to set aside resources to deal with it systematically.
The timing matters because the Hunter region is midway through a broader push to digitise and preserve records connected to the coal industry's long history in the region. As collieries close and workforces transition, community groups from Cessnock to Kurri Kurri have been donating boxes of photographs, union newsletters and site maps. Each new donation risks adding further duplicates to systems that were already struggling before the influx.
What went wrong and where
The core issue is that scanning batches from different donors — processed at separate times by different contractors — produced files that ended up catalogued under inconsistent metadata tags. A single photograph of the Lambton Colliery headframe, for instance, might appear in the system under three different date entries and two different location descriptors, none of them wrong exactly, but none of them matching. Multiply that across thousands of images and keyword searches return cluttered, unreliable results.
Newcastle City Library's Laman Street branch, which holds the bulk of the local studies photographic archive, began an internal audit in late June. Staff have been cross-referencing entries against the State Library of NSW's Recollect platform, which Newcastle uses as its public catalogue interface. The Hunter Valley Research Foundation, based in Cessnock, is running a parallel check of its own digitised mining records, some of which overlap with material held at the library.
The University of Newcastle's School of Information and Communication Studies has been in contact with both organisations. The university already has a working relationship with the library through its Digital Humanities Lab at the Callaghan campus, and researchers there have used automated image-matching tools in previous projects. Whether any formal arrangement emerges from those conversations is not yet confirmed, but the university's involvement would give both institutions access to software that can flag likely duplicates far faster than manual checking.
What the fix looks like in practice
The immediate practical step this week was the suspension of any new public uploads to the Recollect catalogue until the audit reaches a checkpoint — expected around late July. That means community members who submit photographic donations at the Laman Street desk will receive an acknowledgement, but their images will not appear online until the backlog clears.
The Hunter Valley Research Foundation told its membership in a newsletter distributed on July 2 that it was prioritising roughly 1,400 images flagged as probable duplicates from its Cessnock mining collection. The organisation did not give a completion date.
For anyone relying on these archives — family historians, heritage consultants, journalists, school projects — the practical advice is to use the State Records NSW catalogue at archives.nsw.gov.au as a parallel search path. Records held at the Newcastle Branch of State Records on Honeysuckle Drive are not affected by the current duplication problem because those files sit in a separate system managed under different protocols.
The broader lesson from this week's disclosures is that digitisation projects need ongoing maintenance budgets, not just upfront scanning contracts. NSW councils across the Hunter region committed significant funds to the initial scanning work — Newcastle City Council allocated $180,000 toward local studies digitisation in its 2022-23 budget cycle — but recurring metadata management was not built into the same funding envelope. The current audit is being absorbed into existing staff hours, which is why it will take weeks rather than days.
Both organisations have indicated they will publish updated guidance for donors and researchers once the July audit checkpoint is reached. Anyone with photographic material relevant to the Hunter coal industry transition who planned to donate this month is being asked to hold off until that guidance is available.