follows (all batteries comprised four 18-pounder guns or 4.5-inch howitzers): CLV (West Yorkshire) Brigade, Royal Field Artillery (RFA) – A, B, C, D Batteries and Brigade Ammunition Column (BAC) CLXI (Yorkshire) Brigade, RFA – A, B, C, D Batteries and BAC CLXIV (Huddersfield) (Howitzer) Brigade, RFA – A (H), B (H), C (H), D (H) Batteries and BAC CLXVIII (Rotherham) Brigade, RFA – A, B, C, D Batteries and BAC 31st (Hull) Divisional Ammunition Column, RFA 124th (2nd Hull) Heavy Battery, Royal Garrison Artillery When 31st Division embarked for Egypt, the divisional artillery (DA) did not accompany it. Instead, 32nd Division Artillery was attached to 31st Division, and served with it for the rest of the war. (31st DA later joined 32nd Division in France). The 2nd County Palatine Artillery was originally raised in Lancashire by the Earl of Derby: CLXV (2nd County Palatine) Brigade, RFA – A, B, C, D Batteries and BAC CLXIX (2nd County Palatine) Brigade, RFA – A, B, C, D Batteries and BAC CLXX (2nd County Palatine) Brigade, RFA – A, B, C, D Batteries and BAC CLXXI (2nd County Palatine) (Howitzer) Brigade, RFA – A (H), B (H), C (H), D (H) Batteries and BAC 32nd Divisional Ammunition Column, RFA – formed at Heytesbury 10 September 1915 On arrival in France the divisional artillery was reorganised: CLXV – D Bty left and A (H)/CLXXI Bty became D (H) Bty on 2 May 1916 CLXIX – D Bty left and B (H)/CLXXI Bty became D (H) Bty on 2 May 1916 CLXX – D Bty left and C (H)/CLXXI Bty became D (H) Bty on 2 May 1916 CLXXI – D/CLXV, D/CLXIX, and D/CLXX Btys joined and became A, B, and C; D (H) Bty remained V.31 Heavy Trench Mortar Bty joined 4 June 1916 X.31, Y.31 and Z.31 Medium Trench Mortar Btys formed 31 March 1916 The BACs were absorbed by the DAC on 2 May 1916 Further reorganisation of 31st DA occurred in August 1916 when CLXXI Brigade was broken up and the 18-pounder batteries were brought up to six guns: CLXV – A + 1 section A/CLXXI, B + 1 section A/CLXXI, C + 1 Section B/CLXXI, D (H) remained 4 howitzers CLXIX – A + 1 section C, B + 1 section C, D (H)/CLXXI joined as C (H), D (H) remained 4 howitzers; 517 (H) Bty (4 howitzers) joined from