Hey Chris,
A board member (ZachS ) has a site dedicated to Louisiana Cards, including the Red Cross backs - see
https://www.louisianacards.com/t207.html
There are also a few threads on this site that have some of the discussion, e.g.
https://www.net54baseball.com/showthread.php?t=190490
There was also a Ward Miller that was auctioned off in 2018 by REA - an image is in the thread linked above