[Researchers seeking passengers to or from Cuba -]
In my searches for relatives, I have found and saved manifests to (and from) Cuba for the period of 1915 - 1958 (including some cruise manifests).
Some are outbound manifests from the UK.
Most are likely from paid subscriptions to genealogy services, but perhaps not all.
Sandy Crystall, New Hampshire https://iijg.org/maps-of-