Career
He taught the mezzo-soprano Dolora Zajick when she was launching her career. He taught in the music department of the University of Nevada, Reno from 1966 to 1994, and served as chair of the department. In 1965, Puffer recorded two albums of Charles Ives Songs on Folkways Records.
From 1994 until his death in 2003 he was on the voice faculty of the Manhattan School of Music in New York City.
He also founded the Boston Comic Opera, The Milwaukee Opera, and the Salt Lake Opera in Logan, Utah. His nickname was Johnny "Opera" Seed for growing so many companies.
The Puffers" daughter, Monica Harte, sings professionally and teaches singing, co-directs the Remarkable Theater Brigade, and in 2012 became director of the Nevada Opera.