Help with Acronyms DS, DD

atlsubnuc

5-Year Member
Joined
Dec 20, 2011
Messages
4
Hello,

My son just received an appointment to the USMA so I've found this forum to start researching about his life as a cadet and ours as USMA parents. Could someone please explain the acronyms DS and DD. I've figured out the second letter (son/daughter) but the meaning of the first is still a mystery.

Thanks,
 
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