The Museum offers a research service for postal enquiries. The archive is also open to personal visits by appointment only.  Regrettably we can not accept enquiries over the phone.  Although certain records, such as soldiers' service details, are held elsewhere (see links below), the Museum's resources include the following :
  

General

• Details of recipients of decorations and gallantry medals since 1854

• Medal and casualty rolls for Royal Welch campaigns

• Extensive library

• Background information on all campaigns involving the RWF

• Important collection of papers and manuscripts relating to
  specific campaigns (eg the diaries of Frederick Mackenzie
  covering the American War of Independence)

• Biographical details of officers, 1689-1920

• Battalion digests of service

• Several thousands of original photographs dating back to 1856

• Fact sheets on a wide range of subjects which are continually being expanded

• War diaries, battalion/unit histories providing day-by-day accounts of service

• Extensive photographic collection

• Details of recipients of all decorations and gallantry medal

• Access to medal entitlement of individual soldiers

• Important archives relating to Great War poets and authors, Robert Graves, Siegfried Sassoon and Dr. James Dunn

• Unpublished diaries, letters and memoirs

• Commonwealth War Graves Commission Registers

• Comprehensive collection of trench and other maps

• Over 300 items of uniform

• Large Headdress collection

• Comprehensive insignia collection

• Miscellaneous artefacts from all periods

• Large collection of original works of art

• Weapons collection

• Full colour/sepia scan of image £10
• Higher quality photographic reproduction £20