Celebrimbor [SEP] present in work
remembered this he would have felt bound to retain that version.
Yet another statement in the late essay "Of Dwarves and Men" has Celebrimbor as a Sinda who claimed descent from Daeron, and at one point Celebrimbor was also a Noldo of Gondolin.
The explanation for these changes is that Celebrimbor as a character, like Galadriel and Gil-galad, first appeared in "The Lord of the Rings" and then had to be inserted into "The Silmarillion", thus leading to multiple changes to their descent.
Curufin, fifth son of Fëanor (son of Finwë and his first wife Míriel) and Nerdanel, and the only known grandchild of Fëanor. It is not known where or when Celebrimbor was born. Since Celebrimbor was not mentioned as being present during the Oath of Fëanor, and is first mentioned as living in Nargothrond, it is likely that he was born after the exile of the Noldor, in Middle-earth.
Little is said of his deeds during the First Age. He probably fled to Nargothrond after the Dagor