How to build a family tree that people actually finish. · 5 September 2026 · 4 min read

How to identify everyone in old family photographs

A method for putting names to faces in old photographs — dating the picture, reading the clues, crowd-sourcing the family, and recording the answers so they are never lost again.

Every family has the box. Shoeboxes, biscuit tins, an album with the corners coming off. Dozens of faces, and with each passing year fewer people who can name them. This guide is a method for working through the box before the names are gone for good.

Triage the box first

Do not start with the oldest photograph. Start with the ones most likely to still be identifiable: groups where you recognise at least one person. Sort into three piles:

Work the anchored pile first. Every name you fix becomes a clue for the next photograph.

Date the photograph

A rough date cuts the possible people in half. Clues, from most to least reliable:

  1. Writing on the back. Dates, studio stamps, a name in pencil. Always photograph the back as well as the front.
  2. The format. Small square prints with white borders are usually 1950s–60s; deckled (wavy) edges cluster around the 1940s–50s; postcard-backed portraits and stiff card mounts are pre-1930; colour with an orange cast is 1970s.
  3. Clothes and hair, especially of the women and children.
  4. Objects. A car, a radio, a bicycle, a brand on a shop front.
  5. Known ages. If you can put a name to one child and know their birth year, the photograph is dated.

Read the group

Family photographs follow rules. In a formal group:

Count the children and compare with the tree. "Five children standing, and Grandma had five siblings" is often enough to place the picture.

Compare faces across pictures

Ears, hairlines, the gap between the eyes and the shape of the jaw change little between twenty and sixty. Put a known portrait next to the mystery face. Zoom in on the ears. It sounds odd; it works.

Family resemblance also runs in lines: if the mystery man looks exactly like your uncle, he is probably your uncle's grandfather or great-uncle, not a friend of the family.

Ask the family — the right way

Sending a whole photograph to a family group chat gets "no idea, sorry" from everyone. Instead:

This is exactly why Kindomus lets you draw a box around each face in a family photograph, link it to a person in the tree — or leave it as an open question — and send that question straight to the relative who might know, by WhatsApp or email. The answer comes back attached to the photograph, not buried in a chat.

Record what you learn where it cannot be lost

The tragedy of the box is that the names were once known. Someone knew, and never wrote it down. Whatever you learn:

What to do with the mystery pile

Do not throw it away. Photograph the fronts and backs, put them in the tree as untagged family pictures, and leave them. Trees grow; a cousin you have not met yet will open the tree in five years and say "that's my grandmother". It happens more often than you would think — but only if the picture is somewhere the whole family can see it.

Start your tree while it is fresh.

Kindomus is free. Add the first three names now and invite the relative who knows the rest.

Start a free tree

More guides

How to start a family tree from scratch (and actually keep going)

The five-name method that gets a family tree off the ground in an evening, the mistakes that stall most trees, and what to record for each person so the tree is still useful in twenty years.

40 questions to ask your grandparents before it is too late

A practical interview plan for one afternoon with a grandparent — how to set it up, the questions that unlock real memories, and what to do with the recording afterwards.