The WW1 Medal Index Cards (1914-1922) contain the records for about 5.5 million British soldiers, almost all were entitled to one or more campaign medals for performing military service.
This medal rolls collection covers a wide range of surnames from all alphabetical ranges and is searchable by first and last name, corps, unit or regiment. Medal Index cards are arranged by regiment and were produced for each soldier including a reference to the appropriate Medal Roll and other useful information such as rank, number and the regiment or corps.
The Medal Index Cards were initially held by The National Archives and later removed to the care of The Western Front Association (WFA), an organisation dedicated to furthering interest in the period 1914-1918. They are now searchable online via Ancestry.co.uk and FindMyPast.co.uk either through a PayPerRecord basis or a subscription service. The subscription service works out to be more economical if you are researching many soldiers.