The MS Don Isidro was actually a passenger ship built by ship builders in Kiel, Germany in 1939. On the last of January 1942 she was in Brisbane....and was requisitioned for use as a USAT [U.S. Army Transport].
Well she eventually became a blockade runner to get much need supplies to Gen. MacArthur's men in the Philippines.
But sorry to say things didn't work out as planned.
If you'd care to read about her demise in the Timor Sea...just click on this link:
Hope the ship history is of interest to you