Blog · May 11, 2026

How to date old family photos

Mount stamps, car models, hemlines, and border styles: the detective tricks for putting a year on a mystery photo.

Half the fun of digitizing an archive is playing detective with the undated photos. The evidence is usually right in the frame.

Start with the physical object

• Slide mounts often carry a stamped processing date, month and year. That date is typically within a season of the shot
• Print borders changed by era: white borders with scalloped edges point to the 1950s and 60s, rounded corners to the 1970s
• Paper stamps on the back of prints name the lab and sometimes the date

Then read the picture

• Cars are the best clocks in the frame. A model year sets a hard earliest-possible date
• Clothing and hairstyles narrow the decade, especially on younger people who followed fashion
• Televisions, telephones, and kitchen appliances date interiors within 5 to 10 years
• License plates, shop fronts, and price signs can pin a photo to a year

Use the people

Work out ages from people whose birth years you know. A cousin who looks 7 in a photo and was born in 1961 dates the photo to about 1968.

Record what you conclude

Put the deduced year in the folder name with a question mark, 1968-approx, and note the reasoning in a text file beside the scans. The next generation inherits the conclusion instead of redoing the puzzle.

The best source remains the eldest relatives. Scan first, then interview them with the photos on a screen. It is the conversation they have been waiting to have.