Marilyn was born in San Francisco, CA, to Fred and Bonnie (Cost) Billingsley. She grew up in Albany, CA, in the home built by her father in 1947 on Pomona Ave. Marilyn graduated from Albany High in 1957 and attended University of California at Berkley where she received her Bachelor's degree in 1960. She taught high school Math and English in Sacramento, CA, before moving back to the Bay Area to teach at Miramonte High School in Orinda, CA, from August of 1967 until her retirement in June of 1994. On January 6, 1968, Marilyn married the love of her life Thomas Noonen in Albany, CA and is survived by her beloved husband of over 42 years; two children Victoria Thalimer of Elizabeth, CO, and Mitchell Noonen of Lafayette, CA; two grandchildren Durward Noonen, Katherine Thalimer and son-in-law Todd Thalimer. She will be remembered as a loving and devoted wife, mother, grandmother, and aunt.