Solved -- The box didn't retain my permissiable SELinux environment after a yum update. With a 'sudo setsebool -P samba_enable_home_dirs=1' there was a mighty noise and it started allowing public read-only access to the share.

Someone liked my work (that they help me do) so well, that recently they requested I share the file with everyone on the LAN. I set out to create a publicly readable Samba share for the file. As a user, I issued a 'sudo yum install samba' and soon after started working on the default config file in /etc/samba/smb.conf.

Here's the mix I came up with (which, keep in mind, doesn't work; I could use some help!)