Series Number Id: GSGS 2742; Sheet number: 51b NW; Edition number: 2b, Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC10; envelope_number: 269, Manuscript: D69 field battery & OP markings in Roclincourt area and east of Arras.
Series Number Id: GSGS 2742; Sheet number: 36 SW; Edition number: 1, Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC07; envelope_number: 183, Manuscript on face: limit of advance for battle of Neuve Chapelle; MS on reverse; G.W. Edwards - 1st R. Ir. Rif.
Series Number Id: GSGS 2742; Sheet number: 57c NW; Edition number: 7a, Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC09; envelope_number: 226, Manuscript on east half of sheet: many pencil markings for advance in NE direction - battery positions, OPs etc?; Stamp on reverse: Secret. Capt. RGA. Adjt. 90 Brigade RGA.
Series Number Id: GSGS 2742; Sheet number: 51b SW; Edition number: 4a, Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC09; envelope_number: 238, Manuscript of face: light railways in red & orange ink, as far east as Wancourt and south to Boyelles; manuscript on reverse: J.J. Lovatt RE.