My great-uncle Thomas Boatswain married Helen Victoria Wade(b.1898) in 1924. I think she came from Harrises Vlg in Montserrat. Her parents were William Wade and Ann Kepple and she had a brother named George Wade living in NY.
Another ancestor from Montserrat, Michael Boatswain, married Frances Samuels(b.1898) whose mother was Mary B Sweeney. Do any of those names fit in with your research?