Why old photographs are quietly vanishing

Most family photographs are not lost in fires or floods. They fade, stick together, grow mould, or end up in a loft box that nobody dares open. A black-and-white print from the 1930s may well outlast the colour snapshots your parents took in the 1970s, because early colour dyes are notoriously unstable — they shift towards magenta or yellow long before the paper itself gives up.

The real loss, though, is not the paper. It is the knowledge. A photograph with no names attached is a puzzle, and once the people who could have identified it are gone, that puzzle is permanent. Preserving photographs properly means working on two fronts at once: the physical objects in your care, and the stories that only living memory can supply.

Storing prints so they last another century

Good storage is cheap, and it is almost entirely about what you keep prints away from: heat, damp, light, and acidic paper.

• Move prints into acid-free, lignin-free sleeves made from polyester, polyethylene or archival-grade paper. Avoid PVC wallets, sticky "magnetic" album pages and any sleeve that smells faintly of vinegar — that smell is a sign of chemical breakdown.
• Store them upright in a sturdy acid-free box, like books on a shelf, rather than stacking heavy piles flat. Pressure and friction do real damage over decades.
• Keep the box somewhere cool, dry and stable. Aim for roughly 18–21°C and 35–50% relative humidity. Living-room conditions are fine; lofts, cellars, garages and airing cupboards are not.
• Handle prints by the edges with clean, dry hands or cotton gloves. Never write on the front, and if you must label a print, use a soft pencil (2B or softer) on the back, in a corner. Never use ballpoint pen or marker — it bleeds through.
• Remove rubber bands, paper clips, staples and old adhesive tape. They will always cause more harm than the marks they are hiding.

Where a print is already torn or flaking, put it in a sleeve and leave it alone. A trained conservator can do more later; a home repair with tape usually cannot be undone.

Scanning at a resolution worth keeping

Digitising is not just about having a copy on a phone. It is about creating a master file good enough to reprint, enlarge or examine details in decades to come. Flatbed scanners remain the best tool for prints, and most public libraries still offer them.

• Scan ordinary prints at 600 dpi. For small prints, slides and negatives, go higher — 1200 dpi for prints, 2400–3200 dpi for 35mm film.
• Save a TIFF master at 24-bit colour or 48-bit, then make a smaller JPEG for sharing. TIFF files are large but they do not degrade each time you open them.
• Turn off automatic sharpening, colour correction and "restore" filters for the master scan. Scan the photograph as it is; edit a copy if you want to.
• Scan the back of the print too, especially where there is handwriting, a studio name or a date stamp. That information is often more valuable than the image.
• Name files so a stranger could understand them: 1953-06-Whitby-Aunt-Mabel-001.tif. Keep one folder per decade or per family branch, and be consistent.

Record the names before memories fade

This is the part people skip, and it is the part that matters most. Sit down with the oldest relative you can, put a recorder or phone on the table, and work through the albums together. Do not aim for a polished interview — just keep them talking.

• Ask the simple questions: who is this, where was it taken, roughly when, and what was happening that day?
• Ask about nicknames, maiden names and places that have since been renamed or demolished. These are exactly the details that search engines cannot recover.
• Write the answers onto the sleeves in soft pencil and into the digital file names or descriptions. If someone is unsure, record the guess with a question mark rather than the silence of a blank label.
• Note who gave you each photograph and when. Provenance helps future researchers and prevents arguments later.

Twenty minutes of a grandparent's recollections is worth more than any scanner setting.

Back up, share and publish locally

A single hard drive is not an archive. Follow the simple rule of three copies in two different places, with one of them off-site — an external drive at home, a cloud account, and a set of discs or a portable drive with a relative in another town. Check the copies every year or so, because drives fail quietly.

Sharing is what turns a private collection into local heritage. Village halls, heritage centres, libraries, historical societies and community archives often run scanning days and welcome donations of well-labelled digital copies. A printed booklet of a street or a trade, produced by a local history group and sold for a few pounds, keeps images in circulation and puts names back on faces. Exhibitions in a church or a pub do the same job, and they inevitably draw out more photographs from other people's cupboards.

A weekend plan that actually works

Do not try to save everything at once. Choose one box, one album, or one branch of the family, and work through it in this order: separate the prints, sleeve the fragile ones, scan the best thirty, then sit down with someone who can name the faces.

Repeat next month. A modest, steady routine will preserve far more than an ambitious plan that never quite starts — and it will leave the next generation with something better than a tin of unlabelled photographs.