What happened to Steve Ellis boxing commentator?

Steve Ellis died in New York in the mid-1960s from complications from Diabetes and other health issues. He was my uncle and was one of the best-known broadcasting sportscasters in the US in the 1940s, 1950s and 1960s. He is most often remembered for announcing the first Cassius Clay (later Muhammed Ali)/Sonny Liston fights - he is always shown in the television clips. A lovely man.