She apologised for the grass on the carpet

An aircraft handler spent twenty-four years looking after the Queen's helicopter. After it had moved to RAF Odiham, she came to meet the staff. The chief pilot introduced him. She told him he did a wonderful job, then said: "I must apologise, they picked me up in a field this morning and I've dragged grass through the carpet." He told her it was not a problem.

That account is on the Queen Elizabeth Digital Memorial, among the first public memories published in June. This week the Cabinet Office asked again. Four years ago today her state funeral was held at Westminster Abbey. If a memory of her has stayed with you, they said, add it.

The site went live on 21 April, the hundredth anniversary of her birth. You can search a date and see what she was doing that day. You can search a town and see whether she visited it. Underneath is a digitised Court Circular, the official record of her public engagements from 1952 to 2022. Volunteer students typed it, from data held by The Times Online.

Hundreds of thousands of people have been on the site since the spring. The Prince of Wales wrote about tea at Windsor Castle with his grandmother and Prince Philip when he was young. Sir Stephen Fry wrote about the sense of loss in the crowd at a Test match at the Oval when her death was announced.

This week they published more from the archives. Photographs and objects from the National Gallery, from her visit in 1991 to open the Sainsbury Wing. Material from the London Ambulance Service, from a visit to their headquarters in 1975. An audio recording of a member of the Scottish Women's Institutes on Royal Deeside. In 1936 Princess Elizabeth sent birthday cake to the Barnardo's Girls Village Home in Barkingside. The site has also put up rarely seen films, from her wedding in 1947 through to the Diamond Jubilee Pageant in 2012, from the Royal Collection, the BBC and other collections.

Another memory, still unnamed, is of her on Burmese at Trooping the Colour when shots were fired. The writer was a teenager. They watched her settle the horse and carry on. She turned, they wrote, smiled and laughed to someone near her.

The site is public and you can pin a memory to a date or a place on a map. More of those memories are due to be published through the rest of this year. The stone memorial is still a plan: Foster + Partners' scheme for St James's Park, statues not yet finished.