Not quite. Benes had relatives (I gather mostly nephews, and a sister in the US). One of them with a rather inside track to what went on in Czech Pan-Slavism as well as Czech independence was recruited by Herman Wells to come to Indiana University to teach (roughly after his further employment opportunities with the Czech government had been terminted by the Commies).
Guy had some absolutely top knotch lectures based on Czech state papers he just happened to have.