I was stationed in My Tho for 3.5 years (1969-1972) and there was a vibrant Catholic Community.
It was many things, but it was not mountanous. It was as flat as a football field.
I was an advisor to the civil affairs activities and would be interested in hearing from anyone who might know the whereabouts of Loung Van Thom.
I can be reached rayrobison@clearwire.net