I was of the impression that Sallie Daniles was nursemaid to Loraine and that Alce Catherine Cleaver was nursemaid to Trevor -- I may be wrong. Do you know what became of Sarah Daniels after the disaster?
Sarah/Sallie Daniels and Alice Cleaver both survivied the disaster.
Sarah/Sallie Daniels was the maid to the Allisons. Alice Cleaver was nanny to both Trevor and Lorraine.
There is no data on what happened to Ms. Daniels after the disaster. It is likely that she was dismissed, along with Alice Cleaver, by the Allison family, found employment elsewhere, then got married and later died without ever mentioning that she was on the Titanic.