1) Picture taken by A Heath from Clay Cross at the 1912 Abermaide Camp and showing the Machine Gun Section.
2) Clearly the 5th (Derby) or 6th (Derbyshire) Battalion Notts & Derby – note the 5-Tier Territorial Force shoulder badge – T-#-NOTTS-AND-DERBY.
3) The Officer holds the key – I don’t recognise him as being in the 6th Battalion. In 1911 the Machine Gun Section was under the Command of Lieut. Arthur Cuthbert Brooke-Taylor and that is not him. By 1913 Lieutenant Francis Bradbury Robinson was in charge of the Machine Gun Section and went on a course in Chelsea.