SFC Harry L. Ettmueller, USA, was the Chief Engineer at Hue, 1967-68. He was captured by the North Vietnamese during the TET ’68 offensive on February 5, 1968 and remained a POW until March 5, 1973.
I have not been able to find Harry’s obituary, which is what I would normally place here. In lieu of same, here are Bob Morecook’s and John Bagwell’s messages of February 14 & 15, 2020, notifying everyone of Harry’s passing. The are then followed by a number of other messages of condolence.

Maine Gives P.O.W. Warm Welcome (Mark Gartley)
Walking next to his father near a lake he fished as a boy, Navy Lieut. Markham Gartley looked up at the clear, blue sky and filled his lungs with crisp autumn air. The 28‐year‐old pilot noted the colors of the northern Maine woods—the McIntosh reds of the sugar maples, the

