Hi Penny:
Alan Pitts can probably answer your questions about the 323 men listed under "Morgan's CSA" on the NPS webiste. I suspect this represents a stray roster belonging to the 51st Alabama Partisan Rangers. But Alan is the Alabama expert.
Make a digital scan of the City Point delivery card so that the footnote is readable, and send that as an attachment to my personal e-mail address through the linkage on this website.
And be sure to get in touch with the Old Blandford Church Reception Center. If they don't have CSD listed, they will be interested in adding his name based upon the CMSR research that you have accumulated.
Hugh