Tom,

That's very interesting. Everything we have points to there only being four Black officers remaining with the 372nd after about 09/15/18, namely:
1Lt Arington S. Helm, Chaplain;
2Lt Charles E. Winthrop, Chaplain;
2Lt Robert N. Gardner, DDS; and
2Lt Plato H. Travis, DDS.
All other Black officers were supposed to have been removed from the regiment between approximately the 8th and 15th of September. Page 100 of 'The American Negro Soldier with the Red Hand of France' states:

"The intention of the commanding officer was to have either "all white" or "all colored" officers in the regiment and it was apparent that there were to be all white. Seventy-seven colored officers were releived in this manner, and the four that remained were the two dental officers and the two chaplains."

We've found other sources that also seem to confirm this outcome.

I'm planning a trip to the Archives in late July with the specific purpose of finding the transcripts of the 'Courts of Elimination', as well as anything relating to the removal of the Black oficers. If possible, I'd like to get together with you at some point after that to compare notes (I'm only 30 minutes from Fredricksburg).

Jim