How to Preserve Old Family Photos

Family photographs are usually the only surviving image of the people in your tree, and most of the damage they suffer comes from being stored in a loft, a garage or a "magnetic" album — three of the worst environments there are. The good news is that preservation is mostly about avoiding harm rather than doing anything clever: stable temperature, low humidity, no light, acid-free materials, and clean hands. That plus a digital copy covers almost everything. This page sets out how to store, handle, label and identify old photographs, and when to stop and call a professional. Keeping track of who's in them is easier alongside the printable family tree.

What Destroys Photographs Fastest?

Knowing the enemy makes the storage advice obvious.

The single worst place is a loft: it's hot in summer, cold in winter, and the humidity swings constantly. Garages and basements are little better. A cupboard inside the house — a spare room, under a bed, a wardrobe — is dramatically better and costs nothing.

The target conditions are roughly 15–20°C and 30–50% relative humidity, stable rather than perfect. Stability matters more than hitting exact numbers.

How Should You Store Them?

Materials to buy:

• Acid-free, lignin-free boxes — archival photo boxes are inexpensive and the single best purchase
• Acid-free interleaving paper between prints
• Polyester, polypropylene or polyethylene sleeves for individual valuable images. Look for "PAT" (Photographic Activity Test) on the packaging
• Acid-free albums with photo corners, not adhesive pages

What to avoid entirely: magnetic or self-adhesive albums, PVC sleeves, ordinary cardboard boxes, rubber bands, paperclips, adhesive tape, glue, and shoeboxes.

How to organize:

• Store prints flat, not on edge, in boxes sized so they don't slump
• Don't overfill — pressure causes curling and sticking
• Separate formats. Different photographic processes deteriorate differently, and some off-gas. Keep color prints apart from black and white, and both apart from negatives
• Store negatives separately from prints, ideally in a different room. If prints are lost, negatives survive
• Never on the floor, because of flooding
• Keep the loose ones loose. Don't glue anything into anything

Framed photographs on display should be copies, not originals. Even indirect daylight fades an image over years, and the fading is permanent. Scan the original, print a copy, frame the copy, and store the original in the dark.

How Do You Handle Them?

Wash and dry your hands before starting, or wear clean cotton or nitrile gloves for older and more fragile items. Skin oils etch photographic emulsion slowly but permanently.

Hold by the edges only. Never touch the image surface.

Support the whole print when moving it — larger and older prints crack if held by one corner.

Work on a clean, dry, uncluttered surface, away from food and drink.

Never use tape, glue, staples, paperclips or rubber bands.

Don't try to flatten a curled photograph by weighting it, and don't ever try to unroll a tightly rolled one. Both crack the emulsion. A conservator can humidify and flatten them safely.

Don't attempt to clean. Wiping with a cloth, water, or any solvent removes emulsion. Surface dust can be removed with a soft brush; anything more should be left.

Don't separate photographs stuck together. Pulling them apart tears the emulsion off both. This is a conservator job.

Write on the back with a soft pencil only — a 2B, in the margin, with light pressure — never a ballpoint or marker, which bleed through over time. Better still, label the enclosure rather than the photograph.

How Do You Identify and Label Them?

The genuinely urgent part, because unlike the paper, identification has a deadline.

Ask now. Every family has a box of photographs nobody can identify because the person who knew died first. Sit down with the oldest relatives while they're here, with the box on the table — that's also one of the most effective ways to prompt memory, which is why it appears in how to interview a relative. Record the conversation; you'll capture more than you can write down.

What to record for each image: who's in it and where they're standing, the approximate date, the place, the occasion, who took it, and where the photograph came from.

Use the clues in the image. Clothing, hairstyles, vehicles, shop signs, the photographic format and the photographer's studio imprint all narrow a date considerably — dating old family photos goes through the methods.

Label the digital copies rather than the originals. Filenames like `1912-smith-family-portrait-blackburn.jpg` plus a spreadsheet of details is far safer than writing on a print, and infinitely more searchable.

Number the originals lightly in pencil on the reverse and cross-reference to your notes if you'd rather not write details on them.

Record uncertainty honestly. "Probably Elizabeth, c.1905" is much more useful than a confident guess that later gets treated as fact.

Should You Digitise Them?

Yes, and it's the most important thing on this page after moving them out of the loft. A digital copy survives fire, flood, and the box being thrown out by someone who didn't know.

Scanner settings:

Scan, don't photograph, where possible. A flatbed scanner gives even lighting and no distortion. Phone photographs are a reasonable fallback for items too fragile or too large to scan — good indirect light, camera square to the item, no flash.

Scan the back too if there's writing on it.

Don't crop, rotate or "enhance" the archival scan. Keep the master file exactly as scanned, and edit copies. Automatic dust removal and color correction can destroy detail you'll want later.

Back up in three places, at least one off-site or in the cloud. A single hard drive is not a backup — it's a pending loss. The same principles apply to papers and certificates, covered in how to digitize family documents.

Then use them. Scanned and labeled photographs are what turn a family history from a document into something people want to look at — see how to write a family history and how to create a family history book.

What Should You Do With a Box You've Just Inherited?

A common and slightly overwhelming situation, and there's a sensible order to work in.

Don't sort straight away. The instinct is to start dividing everything into piles, and it destroys context. The order things were stored in, what was grouped with what, and what was in which envelope all carry information. Photograph the box contents in place before you disturb them.

Get it somewhere stable first. If it came from a loft or a damp garage, move it indoors and let it acclimatise gradually rather than opening everything immediately.

Do a quick triage for urgency. Anything visibly moldy, wet, or smelling of vinegar gets isolated from the rest — those are the items that damage their neighbors. Everything else can wait.

Work in batches. A box of several hundred photographs is a project of months, not an afternoon. Twenty a session, properly scanned and labeled, is sustainable; attempting the lot in one go usually means it gets abandoned half-done and left in worse order than it started.

Scan before rehousing. If you're only going to do one pass, scanning captures the information; the archival boxes protect the object. Both matter, and the digital copy is the one that protects against total loss.

Keep envelopes, notes and packaging. A faded chemist's envelope with a date stamp, or a scribbled note in an unknown hand, is often the only dating evidence you'll get.

Talk to the wider family before discarding anything. Duplicates, blurred shots and unidentified images often mean something to a cousin who recognises the house or the dog.

When Should You Call a Conservator?

Some situations need a professional, and improvised repair destroys more photographs than neglect does.

Call a conservator for: mold or active fungal growth, photographs stuck together or stuck to glass, tightly rolled or badly curled prints, tears in valuable images, water damage, flaking emulsion, and anything of significant historical value.

Two specific hazards worth knowing about. Cellulose nitrate film, used up to around 1950, is chemically unstable, degrades to a sticky or powdery mess, and is genuinely flammable — if you find old negatives that smell strongly acidic, seek advice rather than storing them with everything else. Cellulose acetate film suffers "vinegar syndrome", recognizable by a sharp vinegar smell; affected negatives should be isolated and scanned urgently, because they continue to degrade.

In a flood, don't let wet photographs dry stuck together. Keep them wet in clean cold water and get advice quickly, or freeze them to buy time. Counterintuitive and it works.

What you can safely do yourself: rehousing into archival materials, removing photographs from magnetic albums where they lift easily, gentle dusting with a soft brush, scanning, and improving the storage environment. That covers the great majority of collections.

Frequently Asked Questions

Where should I store old family photos?

Inside the house, in a stable, dark, dry place — a cupboard, wardrobe or under a bed. Never lofts, garages or basements, where heat and humidity swings cause the fastest deterioration. Store flat in acid-free boxes, never on the floor.

Are magnetic photo albums bad for photographs?

Yes. The adhesive bonds permanently over time and the card is acidic, causing yellowing and staining. Remove photographs where they lift easily, and leave stuck ones to a conservator rather than forcing them.

Should I write on the back of old photos?

Ideally not. If you must, use a soft pencil in the margin with very light pressure — never ballpoint or marker, which bleed through. Better to label the sleeve or box, and record full details against a numbered digital copy.

What resolution should I scan old photos at?

600 dpi for standard prints, 1200 dpi for small ones, and 2400–4800 dpi for negatives and slides. Save an unedited TIFF as the archival master and a JPEG for sharing. Scan the back too if there's writing on it.

How do I clean an old photograph?

Don't, beyond gentle dusting with a soft brush. Water, cloths and solvents remove emulsion permanently. Photographs that are dirty, stuck together, moldy or damaged need a professional conservator.

What do I do with photographs nobody can identify?

Ask the oldest relatives while you still can, ideally with the box in front of them and a recorder running. Use clothing, vehicles, signage and photographic format to narrow dates, and record uncertainty honestly rather than guessing.

One point about distribution, which is the most reliable preservation strategy of all: scan the collection and give copies to several relatives in different households. Archival boxes protect against decay, but they don't protect against a house fire or a family member clearing a garage without asking. Copies in five homes are more durable than any single well-stored original.

Two actions cover most of it: move the box out of the loft into an interior cupboard today, and sit down with the oldest person in the family to put names to faces. Everything else — archival boxes, scanning, labeling — can follow at your own pace. Keep track of who's who as you go with the printable family tree.