Army Training School for Chaplains and approved chaplain candidates, Camp Zachary Taylor, Louisville, Ky., "Lining up for Mess". June 1, 1918.

Note that, in this last photograph, there's a chaplain or chaplain candidate who appears to be black, bottom row, fourth from left.  If that's correct, this would be a highly unusual example of a black officer serving in an integrated school at a time at which the Army was highly segregated.  Perhaps, given the roles chaplains fulfilled, this is a rare example of an exception to the prevailing rule of the time.