Hi thomaslea1, I had problems with one headlamp which turned out to be due to a faulty dimdip relay. In the 1980's cars often had dimdip where changing from full beam to dipped headlights was achieved by passing 12 volts through both headlamps in series, therefore running both headlamps on 6 volts each. Morgan achieved this by using a relay behind the dashboard. This relay is now unavailable, it has nothing written on it and is sealed with resin so can not be repaired.
There are instructions on the internet on how to remove the old relay and repair the wiring. If you feel the small sidelights on top of the wings are inadequate you can change the headlamp bowl to the ones with a sidelight included and couple them up to the sidelight feed at the same time. I have the wiring instructions for removing the relay if you are unable to locate them.