For me, the letter K elicits the immediate response – William Kincaid. He was the principle flutist of the Philadelphia Orchestra and taught at the Curtis Institute for the majority of his career.
Born in Minneapolis in 1911, he studied flute with Georges Barrere at the Institute of Musical Art. After a stint in the Navy, he spent the rest of his working career in Philadelphia.
Unfortunately, I never studied with Kincaid, but my teachers were all former Kincaid students. I was just one generation beyond his personal scope. He retired from the Philadelphia Orchestra in 1960, and I entered college in 1962. That said, his influence on American flute playing was broad and covered the the flute world for over half a century.
Keeping in mind that recording technology was less advanced in Kincaid's day, I was delighted to discover this You Tube link; http://musiclassical.podomatic.com/entry/2006-08-25T12_08_59-07_00
it is Kincaid and the Philadelphia Orchestra performing Debussy's Afternoon of a Faun - a staple in every flutist's repertoire that is included on every orchestral audition today.