I emailed the Patronato (in Spanish) asking about immigration records but there was no reply. I did see that Facebook has a page for the Patronato but the information about it is sketchy. I tried posting on that but nothing happened. I don't think the contact person mentioned in this discussion group for the Patronato is the contact anymore (I used the organization's email address, not a person's).

There are articles out there about the Cuban Jews but they speak generically about the immigration experience and don't provide clues to where there may be data. I've tried researching the potential ports of embarkation (Bremen, Hamburg, etc.) but so far no luck. None of the major genealogy portals have their names as immigration ship passengers. The portal called Cubagenweb only has Havana disembarking passenger lists from ships prior to 1900s. I've also looked at collections of Cuban newspapers, most notably the major publication El Diario de la Marina, which is digitized but not indexed so that one cannot search within the collection nor within each edition. 

If disembarkation lists are lost, I have to believe that embarkation lists still exist somewhere. However, it's been like searching for a needle in a haystack. I wish some of the scholars or leaders of the Jewish community could take up the search for the 1920s. Many of those Jews immigrated twice in their lifetimes (1) out of Europe in the early 20th century and (2) out of Cuba in the 1960s mostly into the U.S.

Eugenia Bachert