Phone: 210-356-0567


Degrees and Certifications:

BS, Geography, Northern Arizona University, Flagstaff, AZ JROTC School of Cadet Command (JSOCC), Fort Knox, KY JROTC Distance Learning Course (JROTC DLC) NRA Rifle Coach Level 1 Civilian Marksmanship Program (CMP) JROTC Marksmanship Instructor Course (JMIC)

Mr. Thomas Groggett MAJ (Ret)

Power Point

Also click on the topics in the anouncements to see the things our Cadets have been up to

 New to Jrotc

I have served at many levels and unit assignments throughout my military career with a focus to improve and make each one better than before. I have always worked to enable those I have been honored to teach and mentor to achieve more. My formal military training as an Explosive Ordnance Disposal Officer has exposed me to many training techniques and courses. As a secondary mission I have trained numerous soldiers and personnel on basic explosive safety and other hazards associated with the numerous contingency and combat operations being conducted. I have experienced training US, NATO members, Eastern European, Iraqi personnel, all who have their own unique cultural background styles. The biggest pleasure that I have attained though is teaching the future of this great country

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Current Assignments

There are no current assignments.

Past Due Assignments

  •  Class Schedule: 2021 -2022 School Year


    Morning Practice 6:30-8:30 am

    1st Period 8:50-9:42 am

    2nd Period 9:47-10:39 am

    3rd Period 10:44-11:36 am

    4th Period 11:41-12:33 pm -Teacher Duty- 

    5th Period 12:38-1:30 pm -Conference-

    6th Period 1:35-2:27 pm

    7th Period 2:32-3:24 pm

    8th Period 3:29-4:20 pm

    Evening Practice 4:30-6:30 pm



    Morning Practice    6:30-8:30 am 

    1st Period                8:50-9:35 am

    2nd Period              9:40-10:25 am

    3rd Period            10:30-11:15 am

    4th Period            11:19-12:04 pm-Teacher Duty-

    5th Period            12:08-12:53 pm-Conference-

    6th Period            12:57-1:42 pm

    7th Period            1:46-2:31 pm

    8th Period             2:35-3:20 pm

     -Professional Learning Community-  3:25-4:20 pm

    Evening Practice 4:30-6:30 pm 



    Morning Practice    6:30-8:30 am

    1st Period                8:50-9:35 am

    2nd Period              9:40-10:25 am

    -Flex-                  10:30-11:15 am

    3rd Period            11:20-12:05 am

    4th Period            12:10-12:55 pm-Teacher Duty-

    5th Period              1:00-1:45 pm-Conference-

    6th Period              1:50-2:35 pm

    7th Period              2:40-3:25 pm

    8th Period              3:30-4:20 pm

    Evening Practice 4:30-6:30 pm

CT Johnson JROTC Shoulder Patch