Is it possible to obtain muster rolls for army units? I'm trying to piece together my great grandfather's time with the BEF in France. He was in the 7th Batallion Argyll and Sutherland Highlanders. Thanks to Drew I have the war diary covering 1940 but this only lists officers. According to his service records he was in 'A' Company, no. 6 Platoon but I don't know if this would still be the case after they embarked for France. I think it also says he was in "adm pl" (admin platoon?). He was a pre-war territorial (joined in 1936) so I'm not sure if this record refers to his assignment prior to going overseas. Pinning down what company he was in would help a lot in tracing his movements. His POW diary says he was captured at Franleu which is where 'A' Company was June 5th but the mention of "adm pl" makes me wonder if he was in the HQ Company which was also based at Franleu (with 'A' Company being sent to reinforce the area). I believe there is another war diary for the unit at Kew ( WO 166/4118) which covers Sept - Dec 1939 and part of 1940. Is it possible more detailed records might be contained within it? I know the 1940 diary was compiled under more difficult circumstances and at least parts of it were destroyed and rewritten later. Cheers.