Fiscal Year 1966 

9-66

A1

9 Dec 65 – 24 May 66

78

2

12-66

A2

4 Jan 66 – 5 Apr 66

37

OD

0

14-66

B1

12 Jan 66 – 22 Jun 66

73

AR

3

15-66

B2

20 Jan 66 – 19 Apr 66

71

TC

0

16-66

D1

10 Feb 66 – 12 May 66

93

QM

2

17-66

D2

28 Feb 66 – 26 May 66

90

TC

1

18-66

C1

10 Mar 66 – 13 Aug 66

86

AR

6

19-66

C2

24 Mar 66 – 22 Jun 66

90

OD

0

20-66

E1

7 Apr 66 – 8 Jul 66

82

TC

0

21-66

E2

21 Apr 66 – 14 Jul 66

78

QM

1

22-66

F1

28 Apr 66 – 4 Oct 66

93

AR

6

23-66

F2

6 May 66 – 4 Aug 66

104

OD

1

24-66

B2

20 May 66 – 18 Aug 66

96

TC

1

25-66

D2

27 May 66 – 1 Nov 66

84

AR

1

26-66

D1

10 Jun 66 – 8 Sep 66

103

QM

1

27-66

A1

17 Jun 66 – 15 Sep 66

85

OD

0

Fiscal Year 1967

1-67

C2

11 Jul 66 – 17 Dec 66

91

AR

1

2-67

B1

19 Jul 66 – 10 Jan 67

77

AR

4

3-67

E1

29 Jul 66 – 20 Jan 67

83

AR

2

4-67

E2

5 Aug 66 – 27 Jan 67

75

AR

2

5-67

F2

12 Aug 66 – 3 Feb 67

86

AR

3

6-67

A2

25 Aug 66 – 16 Feb 67

75

AR

6

7-67

C1

2 Sep 66 – 24 Feb 67

88

AR

1

8-67

B2

12 Sep 66 – 3 Mar 67

86

AR

5

9-67

D2

20 Sep 66 – 15 Mar 67

89

AR

9

10-67

A1

30 Sep 66 – 24 Mar 67

72

AR

2

11-67

G1

11 Oct 66 – 31 Mar 67

71

AR

1

12-67

F1

21 Oct 66 – 14 Apr 67

103

AR

1

13-67

G2

1 Nov 66 – 21 Apr 67

83

AR

4

14-67

H1

14 Nov 66 – 5 May 67

87

AR

3

15-67

D1

23 Nov 66 – 12 May 67

96

AR

0

16-67

H2

6 Dec 66 – 24 May 67

91

AR

0

17-67

C2

8 Jan 67 – 16 Jun 67

102

AR

1

18-67

B1

15 Jan 67 – 23 Jun 67

75

AR

0

19-67

E1

27 Jan 67 – 7 Jul 67

82

AR

2

20-67

E2

3 Feb 67 – 14 Jul 67

62

AR

1

21-67

F2

10 Feb 67 – 21 Jul 67

62

AR

2

22-67

A2

24 Feb 67 – 1 Aug 67

77

AR

2

23-67

C1

6 Mar 67 – 10 Aug 67

60

AR

2

24-67

B2

14 Mar 67 – 18 Aug 67

66

AR

2

25-67

D2

24 Mar 67 – 31 Aug 67

81

AR

2

26-67

A1

5 Apr 67 – 13 Sep 67

77

AR

3

27-67

G1

21 Apr 67 – 29 Sep 67

80

AR

2

28-67

F1

5 May 67 – 13 Oct 67

83

AR

2

29-67

G2

19 May 67 – 27 Oct 67

82

AR

3

30-67

D1

22 May 67 – 2 Nov 67

85

AR

6

31-67

C2

9 Jun 67 – 17 Nov 67

73

2

32-67

B1

23 Jun 67 – 5 Dec 67

73

AR

7

Fiscal Year 1968

1-68

E1

10 Jul 67 – 15 Dec 67

80

AR

3

2-68

E2

21 Jul 67 – 18 Jan 68

75

1

3-68

F2

4 Aug 67 – 1 Feb 68

75

AR

0

4-68

A2/D2

18 Aug 67 – 15 Feb 68

76

AR

1

5-68

B2

1 Sep 67 – 23 Feb 68

100

AR

0

• Classes 9-66 and 12-66 were the first and second OCS classes at Fort Knox since the Korean Conflict. Class 14-66 was the first all Armor commissioned class. Due to the slow pace for OCS acceptance, the first eight classes were not activated, nor were Classes 10, 11, and 13-66.
  
• During Fiscal Year 1966, OCS at Fort Knox was branch immaterial.
• Class 9-66 graduates were able to choose one of the four following branches for commissioning: AR = Armor, OD = Ordnance, QM = Quartermaster Corps, TC = Transportation Corps,
• Beginning in Fiscal Year 1967, OCS at Fort Knox was designated as Armor OCS with all graduates to commissioned as second lieutenants of Armor with the exception of one man in Class 2-68.
  
• Classes 15-66, 17-66, 20-66, and 24-66 completed the thirteen weeks of Phase I of OCS at Fort Knox and were then sent to Fort Eustis, Virginia, for Phase II of Transportation Corps OCS.
• Classes 16-66, 21-66, and 26-66 completed the thirteen weeks of Phase I of OCS at Fort Knox and were then sent to Fort Lee, Virginia, for Phase II of Quartermaster Corps OCS. 
• Classes 12-66, 19-66, 23-66, and 27-66 completed the thirteen weeks of Phase I of OCS at Fort Knox and were then sent to Aberdeen Proving Ground, Maryland, for Phase II of Ordnance OCS.
• An OCS class’s Company Designation was based on the barracks location where they were assigned.
• Class 4-68 started OCS as Company A2, was relocated to and re-designated Company D2 as part of the closing of Armor OCS.
• From 9 December 1965 to 23 February 1968, there were fifty-three Officer Candidate classes.  The following information is based on fifty-two class rosters that were on file at the Armor School Research Library at Fort Knox, Kentucky, and Fort Knox Letter Orders listing the names of those in Class 12-66.

• Nine hundred twenty nine (929) individuals completed thirteen weeks of Phase I OCS training prior to being sent to either Ordnance branch Quartermaster Corps, or Transportation Corps schools for the ten weeks Phase II of OCS training.
• Three thousand three hundred ninety-three (3,393) individuals completed twenty-three weeks of OCS training at Fort Knox and were commissioned as Second Lieutenants. 

• 3,354 were commissioned in the Armor branch.
• 22 were commissioned in the Transportation Corps.
• 10 were commissioned in the Ordnance branch.
• 7 were commissioned in the Quartermaster Corps.

• Four thousand, three hundred twenty-two (4,322) individuals completed OCS training at Fort Knox.
• One hundred thirteen (113) of the 4,322 died or were killed in Vietnam, or later died from wounds sustained in a combat zone in Vietnam.  One died in the Beirut Bombing in 1983.
  
• Calendar year 1968 was the year of the greatest number of deaths.
• Three graduates were the recipients of the Medal of Honor.
• Ten graduates achieved the rank of general officer.