Biographical Dictionary of American Music, by Charles Eugene Claghorn (1911–2005), Parker Publishing Co., West Nyack, New York (1973) OCLC609781
Biography Index, A Cumulative Index to Biographical Material in Books and Magazines — Volume 3: September 1952 — August 1955, New York: H. W. Wilson Company (1956) OCLC731506763, 35305535
Helen likely took the name "Buda" from the slang word "bud," used in the late 1800s and early 1900s for a cute girl that had just entered puberty.