1930: Justin Gordon Holt is born in North Carolina. His family moves to Melbourne, Australia in 1935, and returns to the US in 1947.
1948: CBS's Dr. Peter Goldmark demonstrates the (mono) microgroove LP; Audio Engineering magazine is launched, later to split into Audio magazine and the Journal of the Audio Engineering Society; John Atkinson is born in England; J. Gordon Holt records his high-school band with one of the first tape recorders, a Brush Soundmirror BK401. (One of his 1948 recordings is later featured on Stereophile's first Test CD.)
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