<< I am still hunting down 68-16583 >>
The 68-16583 belonged to the 135th AHC in Nov. 70. Then it went to the 114th AHC. It was lost with complete loss of crew on 12/2/71, when it was flown into the tail boom of another aircraft in flight. This was at location WR053853. This is probably not the aircraft 1/35 found. See this location:
http://www.135ahc.com/135goldbook/68-16583.htm
Pickett