My aunt and uncle lived in Cuba during WWll and he was working for the government. He used to meet with Ernest Hemingway every morning and install sonar gear on Hemingway's fishing boat. He would then meet with him at the end off the fishing day to remove the gear. The USA believed the Nazi's had U-boats in the gulf of Mexico, and Hemingway was helping us try to locate them. We used to hear great stories about Cuba.