Family history guide

What Can the Back of an Old Photograph Tell You?

By Monte Horton · November 3, 2026

Most people look at the front of an old photograph and stop there. Turn it over. The back is often where the useful information is: who took the picture, where, roughly when, and sometimes who's in it.

What is written or printed on the back of old photos?

Start with the printed clues, since they were put there when the photo was made. Handwriting came later, sometimes much later.

How do you find out who took an old photo?

On cartes de visite and cabinet cards, the studio's name usually appears on the back, the front, or both. It's often a printed design with the photographer's name, street address and town.

That imprint is one of the best clues you have, for two reasons:

1. It places your family in a town. People generally had portraits taken near where they lived or traveled. A studio in a town you didn't expect can point to a move, a visit or a branch of the family you haven't found yet.
2. It narrows the date. Photographers opened, closed, moved and took on partners. If you can find the years a studio worked at that exact address, the photo was most likely taken in that window.

To find those years, check:

• City directories for the town, which list businesses year by year. Many are digitized on genealogy websites and at public libraries.
• Local newspapers for the studio's advertisements and notices of openings and moves.
• Lists of photographers compiled by historical societies, state archives and photo historians for many states and cities.

The design of the imprint can help too. Broadly, early card backs tended to be plain or carried a small, simple imprint, and later ones grew larger and more decorative, sometimes filling the whole back. Studios reused old card stock, so treat this as a rough guide.

How can you tell when an old photo was taken from the back?

Beyond the studio, look for these dating clues.

Civil War tax stamps. For about two years, roughly August 1864 to August 1866, the United States taxed photographs to help pay for the Civil War. The photographer stuck a small revenue stamp on the back, and was supposed to cancel it, often with initials and a date. If you find one, you've got a tight window for when that print was sold. Cancellation dates can be hard to read, so check your reading carefully.

Postcard backs. A real photo postcard has address lines and a stamp box printed on the back, and the paper makers' designs changed over the years. Collectors have dated many of those stamp box designs. A postmark, if the card was mailed, gives you a date the photo already existed.

Snapshot backs. Twentieth-century snapshots often have a paper maker's name printed faintly across the back. Many later prints from photofinishers also carry a stamped or printed month and year. A plain date like "APR 1958" is usually what it looks like, but strings of letters and numbers are often machine or order codes, not dates.

For the front of the photo, see How to Date an Old Family Photograph by Its Type. Use both sides together: the photo type gives a broad window, and the back often narrows it.

Who wrote on the back, and when?

A handwritten name on the back can solve a mystery, but it's evidence, not proof. Ask a few questions about it:

• Who wrote it? Compare the handwriting with letters, Bibles or other photos in the same collection. A note by someone who knew the person is stronger than one added by a later relative.
• When was it written? A caption written decades after the photo was taken may be a good guess rather than a fact.
• From whose point of view? "Mother," "Grandpa" or "Aunt Sue" means the writer's mother, grandfather or aunt, not yours. Work out who the writer was before you assign a relationship.
• Does it fit the photo? If the name says one person but the photo type or clothing points to a date when that person was a child, or not yet born, something is off.

When I worked through my wife's album of over 400 photographs, most of them had no names at all. In the identifications that held up, a family member's note on the front or back of a photo was one important piece, alongside the date range from the photo type and other details that either confirmed or ruled out a candidate. No single clue did it alone.

If a relative still remembers who's who, ask now. How to Interview Older Relatives Before Their Stories Are Lost has questions to bring along with the photos.

What if the back is blank?

A blank back may mean the photo was trimmed from a larger mount, removed from an album, or printed by a studio that didn't use imprints. Check the edges for trimming and glue marks, and look for other photos in the collection with the same size, card color or trim, since they may have come from the same sitting or the same album.

A checklist for the back of every photo

Before you put a photo away, record:

1. The photographer's name, street address and town, exactly as printed
2. Any handwriting, copied word for word, including spelling mistakes
3. Whether the writing is pencil or ink, and whether it looks like the same hand as other notes
4. Any stamps, postmarks, paper maker names or printed dates
5. Album glue, scraps or other marks
6. Your own conclusions, kept separate from what's actually written

Scan or photograph the back along with the front, so the clues stay with the picture. And if you add a label yourself, use a soft pencil, write lightly near the edge, and never use a ballpoint or marker, which can press through or bleed into the image.