Born in Los Angeles, California to Norman Nicholas and Lila Rhea Henkel.
Graduates summa cum laude, Phi Beta Kappa, from the University of California Los Angeles, receiving a Bachelor of Arts in history.
Receives a Bachelor of Music from California State University, Northridge.
Composes the film score for the documentary, “The Silent Minority,” for the University of Southern California Gerontology Department.
Joins the Music Clearance Department of Paramount Pictures in Hollywood, CA, and is a music reviewer at the LA Times a year later.
Becomes secretary to Ernest Fleischmann, executive director of the Los Angeles Philharmonic Orchestra.
Receives a Master of Arts in music composition with honors from California State University, Northridge.
Broadcasts live concert music on a Sunday afternoon series on KFAC Radio.
Serves as a scriptwriter and intermission feature producer for the Olympic Arts Festival & Chamber Music broadcast over KUSC-FM Radio.
Is a scriptwriter and intermission feature producer of LA Opera (Otello), which is broadcast nationally on KUSC-FM Radio.
Becomes a program annotator for the Los Angeles Chamber Orchestra.
Releases Henkel: River Sky on Acoma CD, “The Many Moods of the Guitar.”
Premiers “Book of Hours,” a five movement solo harp piece at Ducal Palace in Gubbio, Italy on live television.
Premiers Sonata for Flute & Piano in London, England.
Receives a commission from the Music Arts Council of the State of Alaska.
Becomes a liner note writer for Pro Piano Records in New York, New York.
Is a docent trainer and writer of classroom and teachers’ materials for the LA Chamber Orchestra’s Elementary School Outreach Program.
Establishes the Sign of the Silver Birch Music publishing company in Los Angeles, California, where she serves as a composer.
Becomes principal guest composer of the 28th Annual Dana New Music Festival at Youngstown State University in Ohio.
Premiers Passing Doble for string orchestra at the 30th Annual Dana Festival at Youngstown State University,