From The Miami News on this day in 1936:
The harmonica is no more the whining horror of the back alley and slum curb. Borrah Minevitch gave it its first leg-up by organizing his gang of ragamuffins into a symphonic whole and appearing by command before a king. But a talented sprig named Larry Adler has introduced the mouth organ in the drawing rooms of the Gold Coast. He was the outstanding hit of the Queen Mary entertainers on her maiden voyage and kept a handpicked crowd at a Jules Glaenzer shingdig up until almost dawn, wah-wahing a variation of classical and swing tunes. His records are on the biggest selling list and he is able to command $500 for a private performance. And is just 20.