My Dad's service in Vietnam (A Co 2/5th 1st Cav)

Hello

I am seeking anyone who might know my Dad.  He was in country from Dec 68 - Dec 69.  Primarily in and around Tay Ninh.  I have his OMPF and can provide additional info if needed.  I would I have spoken to a few VN vets who were part of A Co but not in my Dad's platoon.  I would like to find anyone or perhaps sources for records that could tell me what platoon he was in.

Thomas (Tom) E Clark
Sergeant
11B40-Infantryman
1969-1969, 11B40, A Company, 2nd Battalion, 5th Cavalry, 1st Cavalry Division

Many thanks.

Brad