SOME 18,000 items from Rotherham Archives feature in a new digital collection which will eventually hold more than two million pieces.
The Ogilby Muster (TOM) is an online platform providing access to First World War archives held in museums across the UK.
There are more than 75 participating collections, including Rotherham, which is home to the York and Lancaster Regiment Museum.
The project, which is funded by a government grant, is live at www.theogilbymuster.com.
TOM includes documents, letters, photos, diaries and more from the period 1900 to 1929.
Katherine Swinfen Eady, trustee of the Army Museums Ogilby Trust, said: “With the opening of the TOM platform, we are given a wonderful key to unlock history.
“TOM allows us to piece together the truth left behind by the subjects, to build up that wonderful pattern of a jigsaw and find the missing fragments of information.”