I am the grandaughter of Rafael Duchesne (1890-1986). Where did you get the information that he was part of the Southern Syncopated Orchestra, and that he joined the Briggs Band in Paris? When Rafael returned from WW1 he recorded the albun with the Hellfighthers but afterwards he returned to Puerto Rico, where he continue his carrer as a musician. His Cousin Rafael Duchesne (1899-1958)was also a musician in WW1, was discharged form the army in 1920, returned to Puerto Rico, reentered New York in 1924. He is the one who established himself as a Jazz musician and played with Noble Sissle. He recorded with the name Ralph Duquesne, maybe to differentiate himself from the oldest, Rafael. The records (New York passengers list) shows that he went to France in 1952, but I am unaware with who he went to play with.IT does not seem possible that in 1919, either one of them followed the SSO and went to England and lated on, joint the Briggs Band in Paris. I seen other articles on the internet that identified both as the same person, I will like to clarify the confusion.