While reading this, I realized that I have a copy of the elusive usr/group Standard that the author mentions. I just pulled it off an image of my early DOS hard drive (before I migrated to Linux in 1991). I should probably post it somewhere.
# ls -altr
total 540
-rw-r--r-- 1 root root 22606 Apr 12 1990 NOTES
-rw-r--r-- 1 root root 172645 Apr 12 1990 LIB
-rw-r--r-- 1 root root 102349 Apr 12 1990 APP
-rw-r--r-- 1 root root 224037 Apr 12 1990 C