[1] Born in Winnipeg, Manitoba, Bornoff studied in his native city with Gus Hughes (1916–18), John Waterhouse (1919–20), I.S.
His wife, pianist and contralto Mary Ada Baron Bornoff, taught with him at the school.
He then taught violin and chamber music at Columbia University in New York City from 1945 to 1953.
In 1973 he was appointed professor emeritus at BU and that same year joined the violin faculty at the Boston Conservatory.
Among his notable pupils are Lloyd Blackman, J. Chalmers Doane, Donna Grescoe, Stanley Kolt, Michael A. Levine, Joseph M. Woods and Gerald Stanick.