1. Teeth Arm

Infantry Battalion
Bttn HQ: 2 rifle sqds
1 Intelligence Section: 27 men, rifles
1 Signals Platoon: 37 men, pistols, telephones, radio
3 Companies@
CHQ: 2(8 man) rifle sqds, 2(7 man) pistol sqds
3 platoons@
1(6 man) rifle PHQ sqd,
2 sections@
1(2 man) HQ team, 3(8 man) rifle sqds, 3 BAR, 3 rifle/grenade launchers
1 MG Company:
CHQ: 3 pistol sqds
2 platoons@ 1 pistol PHQ sqd, 4x M1917 Browning MMG, 23 crew with pistols

2. Regiment Support

Infantry Regiment HQ: 3 rifle sqds with:
1 Howitzer Company:
CHQ: 2(11 man) pistol sqds, 3x spare 3" mortars
3 platoons@
PHQ: 1(8 man) pistol sqd
1 section: 1x 37mm M1916 Hotchkiss Infantry Gun
1 section: 1x 3" Stokes Mortar, 11 crew
1 Pioneer Platoon: 4(8 man) rifle/engineer sqds
1 Intelligence Platoon: 2(8 man) rifle/grenade squads

3. Brigade Support

Infantry Brigade HQ: 10 rifle sqds

4. Divisional Support

Up to:
4 Artillery Battalions@
BHQ: 8 rifle sqds, horses, 4 AAMMG, 4 BAR
3 batteries@ 4x 75mm field guns, horses, 2 AAMMG, 8 BAR, Obsolete FC

6 Engineer Companies@

CHQ: 2(12 man) pistol sqds
2 platoons@ 4 rifle/engineer sqds, 2 BAR

1 Scout Squadron: 13 scout planes
1 Signals Company
1 Light Tank Company:

CHQ: 1x FT-17(37mm), 8x spare FT-17(MG)
3 platoons@ 3x FT-17(37mm), 2x FT-17(MG)

1 MP Company

5. Notes

a) Radios are cart mounted and down to battalion HQ level.
b) The 12 Divisions were supposed to have 2 Brigades each of 2 Regiments each of 3 battalions. In practice most were held at 0-30% strength only, the organisation detailed here being full war mobilisation strength.