Thank you Toritoribe.
This is spot on I think. I believe this man was lost on an island in the middle of the Shweli River, along with around 40 others.
His death is unusual being cholera. I will have to investigate this some more.
I see. Then, I presume that it's the writer's transposed typo; シェユレー vs. シュエレー. The second kana is small, so the first two kanas シェ represents a single mora "she/sye". Thus, the first three kanas シェユ written in the document are pronounced "Sheyu", as I wrote in my previous post. However, if the writer transposed the second and third kana as a mistake, the first three kanas シュエ are pronounced "Shue", "Shuwe" or "Shwe". These types of typos can be happen especially when the writer is not familiar with the word, just like not-well-known foreign place names. In conclusion, I think it's not impossible to interpret the place of his death as an island in the Shweli River.I believe this man was lost on an island in the middle of the Shweli River
It's most likely the reason of "Cremation", unlike other cases.His death is unusual being cholera.
I think your first one (Pinlebu) is a match.
The second one is ミヨンチヨウン I guess, so the transliteration is pretty much as Toritoribe-san says. Iit could be an approximation (or a mishearing) of a number of things. Looking at a map of the Irrawady, a few potential names pop out.
Myitkyina
Mya Taung
Myitnge
Myaung...
Migyaungye
Myanaung
The point being the Mya or Myo sound, or something close to it, at the beginning. Could also be a place name that no longer exists. Or could be a place name so minor that it doesn't appear on Googlemaps. Anyway, maybe the list above will jog something loose. You have any information on where the soldier was travelling?