Battalion and Regiment Original
Lettered Company
Final
Numbered Company
1st Battalion, 20th Engineers Company A 1st Company
Company B 30th Company
Company C 3rd Company
2nd Battalion, 20th Engineers Company D 4th Company
Company E 5th Company
Company F 2nd Company
3rd Battalion, 20th Engineers Company A 7th Company
Company B 8th Company
Company C 9th Company
4th Battalion, 20th Engineers Company D 23rd Company
Company E 11th Company
Company F 12th Company
5th Battalion, 20th Engineers Company A 13th Company
Company B 14th Company
Company C 15th Company
6th Battalion, 20th Engineers Company D 16th Company
Company E 17th Company
Company F 18th Company
7th Battalion, 20th Engineers Company A 19th Company
Company B 20th Company
Company C 21st Company
8th Battalion, 20th Engineers Company D 22nd Company
Company E 10th Company
Company F 24th Company
9th Battalion, 20th Engineers Company A 25th Company
Company B 26th Company
Company C 27th Company
10th Battalion, 20th Engineers Company D 28th Company
Company E 29th Company
Company F 6th Company
1st Battalion, 10th Engineers 11th Battalion, 20th Engineers Company A 32nd Company
Company B 33rd Company
Company C 34th Company
2nd Battalion, 10th Engineers 12th Battalion, 20th Engineers Company D 35th Company
Company E 36th Company
Company F 37th Company
Company G 31st Company
41st Engineers 13th Battalion, 20th Engineers Company A 38th Company
Company B 39th Company
Company C 40th Company
Company D 41st Company
42nd Engineers [Regimental HQ Disbanded] Company A 42nd Company
Company B 43rd Company
Company C 44th Company
Company D 45th Company
43rd Engineers 14th Battalion, 20th Engineers Company A 46th Company
Company B 47th Company
Company C 48th Company
Company D 49th Company