Discovered Jazz and Swing in middle school and have been a fan ever since. Collecting 78s, which I started about 35 years ago, has helped me expand my musical horizon. One of my areas of interest is now also the "ethnic" or foreign-language music on shellac that Columbia, Victor, and many other labels produced for immigrants to the United States between the 1910s and 1950s.
When the composer is unknown or not listed on the label, by the way, you should simply leave the composer field blank. If you can figure out the writers' names by Googling them, you can always add them to the Notes, as I have now done, or in a comment.
Or is it Reggies? Probably the name of a previous owner. An artist wouldn't sign it twice on the same label and strike out the initial letter on the B side.