If you will go to VDHA.us and register to enter the members only section, then click on "Advanced Search"
you can find the names and address of 68 Vietnam Veteran Dogs Handlers who list Colorado as their home, and are members of the "Vietnam Dog Handlers Association.
Once register we would recommend that you post you message on the VDHA web site also.
If you can't reach a CO. veteran dog handler let me know, and I will be glad to assit you with your project.
Perry C. Money
USMC MBT Dog Handler Vietnam 1970
VDHA Member #1592