I was looking for more man pages, so I copied the ones in /usr/X11R6/man and /usr/local/man over to /var/www/man and listed them in manpath.conf as instructed. So now they are available here.
https://amarillo.colmena.biz/cgi-bin/man.cgi Several issues here: 1.) The search is not falling through to the second and third manpaths. 2.) The manpath appears in the URL for the second and third manpaths, but not the first. 3.) The links are not generated in the "see also" section for pages on the second and third manpaths.