Richard, you may have already checked the Official Records of the War of the Rebellion, but if you haven't there are a few reports from Wick Morgan including one Bruce Nichols cited in his book. If you google "Ohio State University War of the Rebellion" you will get to a searchable copy of the whole OR. Just put Wick Morgan in the search box and there you are. It will also bring up references to other Morgans, but the ones for Wick Morgan should be at or near the top. Good hunting!
Tom Jones