It appears that after all my toying around I still haven’t the *nix-fu chops to get everything to be stable. Every reboot sees gpsd not restart, but ntpd starts fine.
Found this note on satsignal.eu re challenges with gpsd. Tried the
$ sudo ln -s /lib/systemd/system/gpsd.service /etc/systemd/system/multi-user.target.wants/
command. Did a reboot. Now it starts automatically at reboot. Unfortunately, ntpd didn’t start this time. Thinking about “Whack-A-Mole”…