Gianni Bettini
Gianni Bettini (1860 – 27 February 1938) was a gentleman inventor and a pioneer audiophile who invented several phonograph improvements. He is best known for having made some of the first (and in some cases only) recordings of the voices of several very famous singers and other celebrities of the 1890s. Few of these recordings have survived. Today he is most well known for his involvement in the recording of Benjamin Harrison's voice.