Unfortunately, I was unable to find an Obituary for Helene, but we received this email from Molly Lutcavage (09/03/23):

Sorry to report that my dear friend Helene Kaup Derks, who was among the missing from the 1973 grad list, succumbed to breast cancer in March, 2022.  She was happily married to yacht broker Jim Derks, and had been living and working in Delray Beach, Florida.